**School What Am I Riddle - 30 April**

I have got three eyes and all are in a straight line.

When my red eye opens, everything freezes.

What Am I ?

**For Solution :**Click Here

This Blog is a collection of brain teasers, puzzles (maths,fun,brain etc), riddles,Questions, Quiz.

I have got three eyes and all are in a straight line.

When my red eye opens, everything freezes.

What Am I ?

Replace the question mark with the correct number.

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I am eight letters long - '12345678'

My 1234 is an atmospheric condition.

My 34567 supports a plant.

My 4567 is to appropriate.

My 45 is a friendly thank-you.

My 678 is a man’s name.

Q: What word am I ?

Answer & Explanation

MISTAKEN

Difficulty ★★☆☆☆ Popularity ★★★☆☆

I am thinking of a seven letter word which we read almost daily.

Letter 5 6 and 7 increases every year.

Letter 3 and 4 are the same.

Letter 3 2 and 5 covers about 70 percent of the world.

What word i am thinking of ?

Answer & Explanation

Message

Difficulty ★★☆☆☆ Popularity ★★☆☆☆

There is something which is always coming but never arrives ?

Answer & Explanation

Tomorrow

Difficulty ★☆☆☆☆ Popularity ★★★☆☆

I am as light as a feather, yet the strongest person not able to hold me for more than two minute.

What am I ?

Answer & Explanation

Breath

Difficulty ★★★★☆ Popularity ★★★★★

The below is a number puzzle. It should be read left to right, top to bottom.

1

1 1

2 1

1 2 1 1

1 1 1 2 2 1

? ? ? ? ? ?

? ? ? ? ? ? ? ?

Question 1: What is the next two rows of numbers?

Question 2: How was this reached?

Answer & Explanation

Popular Number Sequence Puzzle

3 1 2 2 1 1

1 3 1 1 2 2 2 1

Line 1 is 'Two ones' (2 1)

Line 2 then becomes 'One two, and one one' (1 2 1 1)

Line 3 therefore is 'One one, one two and two ones' (1 1 1 2 2 1)

Line 4 is 'Three ones, two twos and one one' (3 1 2 2 1 1)

Line 5 is 'One three, one one, two twos and two ones' (1 3 1 1 2 2 1 1)

Difficulty ★★★☆☆ Popularity ★★★☆☆

I am a ten letters word

The first four letters has power to rule,

Next four letter can be eaten.

Next three letter represents a lady.

I can fly as well

what am i looking for ?

Answer & Explanation

Kingfisher

Difficulty ★★★☆☆ Popularity ★★★★☆

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word Am I Looking For ?

Answer & Explanation

Princes (male and plural) add an 's' Princess (female and singular)

Difficulty ★★★★☆ Popularity ★★★★☆

If you throw me from the window,

I will leave a grieving wife.

Bring me back, but in the door, and

You'll see someone giving life!

What am I?

Answer & Explanation

The letter 'n'.

wiNdow - widow

door - doNor

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The first two letters of an English word refer to a man, the first three refer to a woman, the first four to a great man and the whole word to a great woman. What is the word?

Answer & Explanation

Heroine

Difficulty ★★★☆☆ Popularity ★★★☆☆

I am a seven letter word but if you remove four of my letters I will have one left? What word am I?

Answer & Explanation

Someone

Remove Some

The horse jumps over the king.

Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible ?

Find the missing number in the image below ?

Five lovely ladies(Sophia, Isabella, Madison, Emma and Olivia) planned a picnic.

They each buy one thing each for the picnic.

Sophia, Emma and Olivia got a drink : orange-Juice, apple-juice, and mango-juice.

Olivia got the drink with the same letter as the one in her first name.

Emma loves mango-juice.

The other two bring some food : chocolates and pizza.

Also Madison is allergic to cheese.

So which ladies bought what ?

Dhoni is now two fith of his older brother's age and two years from now he will be half of his older brother's age.

Two years ago, dhoni was only one-fourth the age of his older brother age at that time.

How old is dhoni now ?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number ?

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Can you decode this picture and tell me what it says ?

View Answer Discuss in Forum

Answer & Explanation

I Ate Some Pie and It Was Delicious

Difficulty ★★★★☆ Popularity ★★★★☆

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Answer & Explanation

20

Just count the nines in the numbers: 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99.

Note: 99 contains TWO nines!

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Find the next number in the sequence 23 21 24 19 26 15 28 11 30 7 36 ?

Answer & Explanation

5

23-2=21

21+3=24

24-5=19

19+7=26

26-11=15

15+13=28

28-17=11

11+19=30

30-23=7

7+29=36

36-31=5

(2,3,5,7,11,13,17,19,23,29,31,37,41,43... are Prime Numbers)

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If it took eight men ten hours to build a wall, how long would it take four men to build it?

Answer & Explanation

No time at all it is already built

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What does this image riddle means ?

Answer & Explanation

painless operation

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The first two letters of an English word refer to a man, the first three refer to a woman, the first four to a great man and the whole word to a great woman. What is the word?

Answer & Explanation

Heroine

Difficulty ★★★★☆ Popularity ★★★☆☆

What word is identified by the below rebus ?

Your Your Your Your Your

Your Your Your Your Your

Answer & Explanation

Tenures (10 yours)

Difficulty ★★★★☆ Popularity ★★★☆☆

There is a five letter word which has 3 consonants(all are same) and 2 different vowels.

Also something wrong associated with the word.

Can you name it ?

Answer & Explanation

Error

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Two old friends, Jack and Bill, meet after a long time.

Three kids

Jack: Hey, how are you man?

Bill: Not bad, got married and I have three kids now.

Jack: That"s awesome. How old are they?

Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Jack: Cool..But I still don"t know.

Bill: My eldest kid just started taking piano lessons.

Jack: Oh now I get it.

How old are Bill"s kids?

Answer & Explanation

3,3,8

Lets break it down. The product of their ages is 72. So what are the possible choices?

2, 2, 18 sum(2, 2, 18) = 22

2, 4, 9 sum(2, 4, 9) = 15

2, 6, 6 sum(2, 6, 6) = 14

2, 3, 12 sum(2, 3, 12) = 17

3, 4, 6 sum(3, 4, 6) = 13

3, 3, 8 sum(3, 3, 8 ) = 14

1, 8, 9 sum(1,8,9) = 18

1, 3, 24 sum(1, 3, 24) = 28

1, 4, 18 sum(1, 4, 18) = 23

1, 2, 36 sum(1, 2, 36) = 39

1, 6, 12 sum(1, 6, 12) = 19

The sum of their ages is the same as your birth date. That could be anything from 1 to 31 but the fact that Jack was unable to find out the ages, it means there are two or more combinations with the same sum. From the choices above, only two of them are possible now.

2, 6, 6 sum(2, 6, 6) = 14

3, 3, 8 sum(3, 3, 8 ) = 14

Since the eldest kid is taking piano lessons, we can eliminate combination 1 since there are two eldest ones. The answer is 3, 3 and 8.

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ABCDEFGH*H=AAAAAAAAA

What is H?

Answer & Explanation

12345679*9=111111111, so H is 9.

Difficulty ★★☆☆☆ Popularity ★★★★☆

I have mixed 13 decks of cards.

What is the minimum number of cards must be taken out from the above mixed cards to guarantee at least one 'four of a kind'.

Answer & Explanation

13 x 3 + 1 = 40

Explanation:

The number of decks is irrelevant i.e any number of decks can be mixed and still the answer would be same.

Any card drawn will be a Ace,2,3,4,5,6,7,8,9,10,Jack,Queen or King, so there are 13 possibilities each time a card is drawn.

The fastest and luckiest way would need just 4 cards of the same kind.

The slowest way is our solution as it will guarantee a four of a kind.

i.e draw 3 of each kind =>39 cards will be fetched. now next card will guarantee 4 of a kind.

Difficulty ★★★★☆ Popularity ★★★★☆

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Answer & Explanation

20

Just count the nines in the numbers: 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99.

Note: 99 contains TWO nines!

Difficulty ★★★★☆ Popularity ★★★★☆

At the local model boat club, four friends were talking about their boats.

There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.

Alan didn't have a yellow boat. Brian didn't have a red boat, but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.

Can you work out which friend had which coloured boats?

Answer & Explanation

Alan had a red boat and a green boat.

Brian had a green boat and a blue boat.

Charles had a yellow boat and a red boat.

Darren had a blue boat and a yellow boat.

Difficulty ★★☆☆☆ Popularity ★★★★☆

Mr. Rawat wishes to cross a the Sahara desert.

It requires 6 days to cross.

One man can only carry enough food and water for 4 days.

What is the fewest number of other men required to help carry enough food for Mr. Rawat to cross ?

Answer & Explanation

2men

Say 2 helpers are A & B

A food B food Rawat's Food

End of Day 1 : 1 4 4

Now 'A' will head back

End of Day 2 : N/A 2 4

Now 'B' will head back

Now Mr. Rawat have 4 day food :-)

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I purchased a awesome ice cream cone having 5 different flavor scoop.

Five favors are pistachio, mint-chip, strawberry, marshmallow and raspberry

I will give u some clues so that you can figure out the order of flavors from bottom to top.

1. The bottom flavor of the cone has 10 letters.

2. The marshmallow scoop is at between pistachio and the mint-chip scoop.

3. marshmallow is above the raspberry scoop but below the mint-chip scoop.

So can you figure out the flavor of ice cream in order from bottom to top

Answer & Explanation

From bottom to top, the flavors are :

Strawberry

raspberry

pistachio

marshmallow

mint-chip

Difficulty ★★★★☆ Popularity ★★★★☆

Like an usual car, my new i10 car has 5 wheels(2 front + 2 Rear + 1 spare).

Rear wheel of car will wear out after 21000 kilometers and front wheel will wear out after 29000 kilometers.

What is the maximum distance i can cover assuming changing of wheels is not an issues.

Answer & Explanation

Maximum distance : 30,450 kilometers.

For each 5 kilometers driven using this rotation, each tire will lose (2/29000)+(2/21000) of its tread.So, suppose we drive 5*N kilometers like this. Then, each tire will lose 2*N*((1/29000)+(1/21000)) of its tread. We wish to determine N so that the latter expression gets to be 1, representing all of each tire's tread. That happens when N=6090, which is when 5*N (the total kilometers driven) is 30,450.

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One evening there was a murder in the home of married couple, their son and daughter. One of these four people murdered one of the others. One of the members of the family witnessed the crime.

The other one helped the murderer.

These are the things we know for sure:

1. The witness and the one who helped the murderer were not of the same sex.

2. The oldest person and the witness were not of the same sex.

3. The youngest person and the victim were not of the same sex.

4. The one who helped the murderer was older than the victim.

5. The father was the oldest member of the family.

6. The murderer was not the youngest member of the family.

Who was the murderer?

Answer & Explanation

mother

We know from (3) that the youngest person was not the victim, from (4) that the youngest person was not the helper and from (6) that the youngest person was not the killer. The youngest person can only have been the witness therefore. If we make up a chart there are now three possible combinations:

Oldest person (father) H H M

Next to oldest (mother) V M H

Next to youngest (son) M V V

Youngest (daughter) W W W

(H = Helper ; V = Victim ; M = Murderer ; W = Witness)

We can work out from (5) that the father was the oldest, from (2) that the youngest person must have been the daughter. Therefore the next to the youngest must have been the son and the next to the oldest, the mother.

Of three possibilities: the first is impossible (from (3) Ã¢€“ the youngest person and the victim were of different sexes); the third is also impossible (from (1) Ã¢€“ the witness and the helper were of different sexes). Therefore only the second possibility holds Ã¢€“ and the mother was the murderess.

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King Charles want to send the diamond ring to his girlfriend securely.He got multiple locks and their corresponding keys.His girl friend does not have any keys to these locks and if he send the key without a lock , the key can be copied in the way.How can charles send the ring to his girl friend securely .

Answer & Explanation

charles put the ring into the box, secure it with one of your locks, and send the box to the girl firend. She should then attach one of his own locks and return it. When you receive it again, remove your lock and send it back with her lock. Now she can unlock his own lock and retrieve the object.

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My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure i had a matching pair?

Answer & Explanation

Five. There are only four colors, so five socks guarantee that two will be the same color.

Difficulty ★★★☆☆ Popularity ★★★★☆

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Answer & Explanation

188 - 88

Find the next number in the sequence below ?

298 209 129 58

A gardener planted the mangoes trees in a mathematical ordered way (i.e. he planted tree in rows).

He created total of 19 rows of trees.

Note: There should be more than 2 trees to count as a row.

What is the minimum number of trees required by the gardener to have 19 rows of trees ?

Assume you have the white pieces, can you win in a half a move ?

Eight Chelsea player makes following statements :

1. Seven of us are lying here.

3. Five of us are lying here.

5. Four of us are lying here.

6. Three of us are lying here.

7. My name is Torres.

8. My name is Lampard.

The last two are Lampard and Torres or maybe Torres and Lampard.

So can you deduce which of last two is Lampard or Torres ?

Difficulty ★★★☆☆ Popularity ★★★★★

Time in a digital clock can be palindromic like 12:12 (same when read forwards or backwards).

Whats the minimum interval between 2 times that are palindromic ?

2 minutes (between 9:59 and 10:01)

Difficulty ★★★☆☆ Popularity ★★★★★

British Police inspects a room where there is no windows,no doors,no tables and is almost empty expect there is just a puddle of water. They found a dead women who obviously hung herself from the ceiling, but they are not able to figure out how this had happen.

Sherlock and John Watson entered the crime scene and easily able to solve the case.

How did the women die ?

She hung herself using big Ice slabs , which are now now melted and hence puddle of water.

Difficulty ★★★☆☆ Popularity ★★★★★

A donkey travels the exact same distance daily.

strangely 2 of his legs travels 40 kilometers and the remaining two travels 41 kilometers.

Obviously 2 donkey legs cannot be a 1km ahead of the other 2.

The donkey is perfectly normal. So how come this be true ?

The donkey is moving in circular path and hence outside legs travels more distance than inner legs

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Two prisoners 'Lincoln Burrows' and 'Michael Scofield' are locked in a cell.

There is open window approx 30 feet above the ground of the cell.

They are never able to reach there.

Then they plan to escape by a tunnel and they start digging out.

After digging for more than 20 days, Scofield comes with the different plan and they escaped.

what was the plan ?

They use the dirt and bricks from the tunnel and stand on it then one on top of the other.

Difficulty ★★★☆☆ Popularity ★★★★☆

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that sum of number of each group is equal.

Note : 9 cannot be turned over to make it 6.

1 2 3 4 5 9 and 7 8 9

sum of numbers 1 2 3 4 5 6 7 8 9 is 45 , so numbers cant be split into 2 equal parts.

I know i cant turn 9 upside down and make it 6 but i can turn 6 to make it 9.

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I organized a small get together at my home.

In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.

'No, its less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

Tilt the barrel until the whiskey barely touches the lip of the barrel. If the bottom of the barrel is visible then it is less than half full.If the barrel bottom is still completely covered by the whiskey, then it is more than half full.

Difficulty ★★☆☆☆ Popularity ★★★★☆

There was some system error in a mailing website because of which passwords of some clients got changed.

Here is a conversation between a client and mailing-website executive person.

Client : My password is altered.

Client : I am not able to logged-in.

Executive : The password is distinct this time and it got eight letters , out of which two are same of your previous password.

Client: thanks , now i am able to logged-in.

Whats the client old and new passwords ?

Old password : distinct , New Password : altered :p

Difficulty ★★☆☆☆ Popularity ★★★☆☆

How many times in a given day , minutes and hour clock comes in a straight line ?

44

In 12 hours, the minute and hour hands overlaps or are in exact opposite direction 22 times.

=> In 24 hours, the hands overlaps or are in opposite direction 44 times

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I have a apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)

Can you tell me , on what week does my tree is half covered with apples ?

29th week

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A girl, at the funeral of her mother, met a guy whom she did not know. She fell for him and just kept looking at him.Sometime later she realized that the guy is gone and she forgot to take the number of the guy and now she can't find him. A few days later she killed her elder brother. Question: What is her motive in killing her brother ?

She was hoping that the guy would appear at the funeral again.

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Four people need to cross a dark river at night.They have only one torch and the river is too risky to cross without the tourch. if all people cross simultanoesly then torch light wont be sufficient.Speed of each person of crossing the river is different.cross time for each person is 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the river ?

Answer & Explanation

The initial solution most people will think of is to use the fastest person as an usher to guide everyone across. How long would that take? 10 + 1 + 7 + 1 + 2 = 21 mins. Is that it? No. That would make this question too simple even as a warm up question.

Let's brainstorm a little further. To reduce the amount of time, we should find a way for 10 and 7 to go together. If they cross together, then we need one of them to come back to get the others. That would not be ideal. How do we get around that? Maybe we can have 1 waiting on the other side to bring the torch back. Ahaa, we are getting closer. The fastest way to get 1 across and be back is to use 2 to usher 1 across. So let's put all this together.

1 and 2 go cross

2 comes back

7 and 10 go across

1 comes back

1 and 2 go across (done)

Total time = 2 + 2 + 10 + 1 + 2 = 17 mins

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I have 100 coins in my wallet.

What is the minimum number of coin(s), i would be required in order to make sure each coin touched exactly three other coins.

Answer & Explanation

4

3 placed flat on the table in a triangle(touching each other) and put the fourth one on top of them in the middle.

Difficulty ★★★☆☆ Popularity ★★★★★

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten digit numbers.

But i also knowns how many of these numbers are prime.

Do you ?

Answer & Explanation

Zero

The sum of numbers from zero to nine is 45 and can be divisible by 3 and 9.

Difficulty ★☆☆☆☆ Popularity ★★★★☆

You are on your way to visit your Grandma, who lives at the end of the valley. It's her birthday, and you want to give her the cakes you've made.

Between your house and her house, you have to cross 7 bridges, and as it goes in the land of make believe, there is a troll under every bridge! Each troll, quite rightly, insists that you pay a troll toll. Before you can cross their bridge, you have to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake.

How many cakes do you have to leave home with to make sure that you arrive at Grandma's with exactly 2 cakes?

Answer & Explanation

2: At each bridge you are required to give half of your cakes, and you receive one back. Which leaves you with 2 cakes after every bridge.

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In Sahara desert , 3 men found a big 24L Jar is full of water. Since there is shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11 liter Jar.

How do they do it?

Answer & Explanation

24 13 11 5

----------

24 0 0 0

11 13 0 0

6 13 0 5

6 2 11 5

8 0 11 5

8 5 11 0

8 13 3 0

8 8 3 5

8 8 8 0

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Two towns are exactly 100 km apart. Rakesh leaves City A driving at 30 km/hr and Harish leaves City B a half an hour later driving 60 km/hr. Who will be closer to City A when they meet?

Answer & Explanation

Both would be the same distance from City A.

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chacha chaudhary(name of a person) is convicted in Germany. He gets the death penalty. The judge allows him to say a last sentence in order to determine the way the penalty will be carried out. If he lies, he will be hanged, if he speaks the truth he will be beheaded. The perspn speaks a last sentence and to everybody surprise some minutes later he is set free because the judge cannot determine his penalty.What did chacha chaudhary said?

Answer & Explanation

chacha chaudhary said: 'I shall be hanged!' If he was lying, he would be hanged. But that's what the chacha was saying. So he speaks the truth. But if he speaks the truth, he would be beheaded, so then he was not speaking the truth. So it is impossible for the judge to determine wether the person speaks the truth or not. So therefore the judge cannot determine the penalty and sets him free.

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Sachin Tendulkar bough a red ferrari with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number.All the digits of sachin's car number are distinct.

What is the original number on sachin's number plate?

Answer & Explanation

10968

Water image is 89601

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Michael have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the color of the socks. How many of the socks did he want to take to match one pair

Answer & Explanation

Although there are many socks in the draw, there are only three colors. So, four socks are enough to match one pair.

Difficulty ★★★☆☆ Popularity ★★★☆☆

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Answer & Explanation

Steps:

* Start both sand hourglasses at the same time.

* You flip over the small sand hourglass when it finishes the first 5 hours.

* Flip over the large one when it finishes its first 7 hours.

* When the small sand hourglass runs to 10 hours, flip over the small and large sand hourglass at the same time. It means the large sand hourglass will run 3 hours again. When the large sand hourglass run to 13 hours (7 + 3 + 3), flip both the small and large sand hourglass over again to run another 3 hours.

what does this rebus means ?

PROG WORKRESS

Can you count the number of squares in the figure below

It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten digit numbers.

But i also knowns how many of these numbers are prime.

Do you ?

I have 100 coins in my wallet.

What is the minimum number of coin(s) needed to be placed in a flat floor , to make sure each coin touched exactly three other coins.

Sweet & very intelligent katty has 8 puppets(Jane Bird Barbie Angel Colleen Nora Lass Missy).

All puppets are of different size. She arrange all puppets to face towards the guest and tell the guess the following clues :

* Jane has three puppets bigger on its left side

* Bird has two puppets smaller on its left side

* Barbie has one puppet bigger on its right side

* Angel has two puppets smaller on its right side

* Colleen has one puppet bigger on its left side

* Nora has one puppet smaller on its left side

* Lass has four puppets bigger on its right side

* Missy has three puppets smaller on its right side

Also some puppets are inside the bigger puppets.

Assuming you are the guest , can you tell the katty how the puppets are arranged ?

Difficulty ★★★☆☆ Popularity ★★★★★

On a magical land of Narnia , all the animal in the land are rational.

There are 10 tigers and one goat.

Tiger can eat goat but since its a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

9 tiger and one goat

since all animal are rational , once 1st tiger eats the sheep all the rest of tiger would know about this.

Difficulty ★★★☆☆ Popularity ★★★★★

I have two rectangular wires.

Both of them have property that when i light the fire from one end , it will take 60 minutes to get completely burn.

However they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could i measure 45 minutes ?

Steps:

A) burn 1st wire from both end and 2nd wire from one end

B) After 30 minutes(when 1st wire gets completely burned out) , burn the second wire from 2nd end as well

C) when 2nd run completely gets burned , you know its 45 minutes.

Difficulty ★★★☆☆ Popularity ★★★★☆

I have some blue and red sock in my drawer.

I have total of 4 socks.

I pick 2 socks and chances that i get pair of red socks is 1/2.

What is the chance of picking a pair of blue socks ?

zero

I had 3 red socks and 1 blue sock.

=> chances of pair of red socks = 1/2

chances of pair of mixed socks = 1/2

chances of pair of red socks = NULL

Difficulty ★★★★☆ Popularity ★★★★★

What is the probability of choosing the correct answer at random from the options below.

a) 1/4

b) 1/2

c) 1

d) 1/4

If the answer is 1/4, then because 2 out of 4 answer choices are '1/4', the answer must actually be 1/2. This is a contradiction. So the answer cannot be 1/4.

If the answer is 1/2 (or 1), then because 1/2 (or 1) is 1 out of 4 answer choices, the answer must be 1/4. This is again a contradiction. So the answer cannot be 1/2 (nor 1).

So none of the provided answer choices are correct. Therefore the probability of choosing the correct answer is 0%

Difficulty ★★★★☆ Popularity ★★★★☆

You are driving down the road in your car on a wild, stormy night, when you pass by a bus stop and you see three people waiting for the bus

An old lady who looks as if she is about to die.

An old friend who once saved your life.

The perfect partner you have been dreaming about.

Knowing that there can only be one passenger in your car, whom would you choose?

The old lady of course! After helping the old lady into the car, you can give your keys to your friend, and wait with your perfect partner for the bus

Difficulty ★★★☆☆ Popularity ★★★★☆

In a guess game , five friends had to guess the exact numbers of apples in a covered basket.

Friends guessed as 22 , 24, 29 , 33 , 38, but none of guess was right.The guesses were off by 1, 8, 6, 3, and 8 (in a random order).

From this information, can you determine the number of apples in a basket ?

30 apples

22(by 8) , 24(by 6) , 29(by 1) , 33(by 3) , 38(by 8)

Difficulty ★★★☆☆ Popularity ★★★☆☆

Three brothers are identical triplets.

-: The oldest(my minutes) is Sanjay and he is so honest that he always tells the truth.

-: The next oldest is Anurag and he always lies.

-: The next and the youngest is Anmol and he sometimes lies and sometimes tells the truth.

Aditi, an old friend of the the brothers visited them after a long time and did not recognize them.

:- Aditi asked the brother that was sitting on the left, 'Which brother is in the middle of you three?' and the answer she received was, 'Oh, that's Sanjay.'

:- Aditi then asked the brother in the middle, 'What is your name?' The response given was, 'I am Anmol'

:- Aditi turned to the brother on the right, then asked, 'Who is that in the middle?' The brother then replied, 'He is Anurag.'

This confused Aditi; she had asked the same question three times and received three different answers.

Who was who ?

The first one cannot be Sanjay, because that would make the first one a liar. The second one cannot be Sanjay for the same reason. So, the third brother must be Sanjay. This means the middle one is Anurag and the only one left is Anmol.

Difficulty ★☆☆☆☆ Popularity ★★★☆☆

I have a five and a three gallon jar.

Assuming there us an infinite supply of water , how can i measure one gallon water ?

-> Fill up the 3 gallon jar first , Pour it into the five gallon jar.

-> Fill up the 3 gallon jar again, and fill up the rest of the 5 gallon jar,

=> and you should have 1 gallon left over in the 3 gallon jar.

Difficulty ★★★☆☆ Popularity ★★★☆☆

I went to the book shop and spent one half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

I have Dollar 99.98 in my purse when I entered the store.

Difficulty ★★★★☆ Popularity ★★★☆☆

A wealthy man lives alone in a small cottage. Being partially handicapped he had everything delivered to his cottage. The mailman was delivering a letter one Thursday when he noticed that the front door was ajar. Through the opening he could see the man's body lying in a pool of dried blood. When a police officer arrived he surveyed the scene. On the porch were two bottles of warm milk, Monday's newspaper, a catalog, flyers, and unopened mail. The police officer suspects it was foul play. Who does he suspect and why?

The police officer suspects the newspaper delivery person. The absence of Tuesday's and Wednesday's newspaper indicates that the delivery person knew there was no one there to read it.

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