Difficulty Popularity

UNO plans a gathering.

However there is threat of terrorist attack. So security guard who is a mathematical plans somethings to secure the place.

A terrorist stands nearby the door where

1st ambassador comes , the security guard said 'twelve' and ambassador replied with 'six'.

2nd ambassador comes , the security guard said 'six' and ambassador replied with 'three'.

The terrorist thinks its enough and walks to the door.

The security person said 'eight' , terrorist replied 'four' and get immediately arrested.

why ?

However there is threat of terrorist attack. So security guard who is a mathematical plans somethings to secure the place.

A terrorist stands nearby the door where

1st ambassador comes , the security guard said 'twelve' and ambassador replied with 'six'.

2nd ambassador comes , the security guard said 'six' and ambassador replied with 'three'.

The terrorist thinks its enough and walks to the door.

The security person said 'eight' , terrorist replied 'four' and get immediately arrested.

why ?

Discussion

Suggestions

Difficulty Popularity

Dr. Watson has a new card puzzle for Sherlock Holmes. He picks four cards out of the pack of 52 cards and lays them face down on the table. He offers four hints to Sherlock.

1) The left card can’t be greater than the one on right.

2) The difference between the first card and third card equals to eight.

3) None of the Ace is present

4) No face card has been included i.e. no queen king and jacks.

5) The difference between the second and fourth card is 7.

Sherlock smiles and tells all the four cards to Dr. Watson.

Can you tell the four cards?
**category** :
LOGIC

1) The left card can’t be greater than the one on right.

2) The difference between the first card and third card equals to eight.

3) None of the Ace is present

4) No face card has been included i.e. no queen king and jacks.

5) The difference between the second and fourth card is 7.

Sherlock smiles and tells all the four cards to Dr. Watson.

Can you tell the four cards?

Difficulty Popularity

Alan is an honest person who never speaks a lie. He thinks of a number among 1, 2 and 3. Now, you can ask him only one question and that too for which the answer that you will receive will be in the form of yes, no or don't know. But he will reply only truth fully.

What will you ask from his so that you can know the number he is thinking of?

What will you ask from his so that you can know the number he is thinking of?

Difficulty Popularity

Michelangelo is being chased by a couple of cannibals who will kill him as soon as they get a hold of him. The only way to get rid of them is crossing the river bridge made of ropes and cut it on reaching the other end. He have found two diamonds in the woods each weighing 8 lbs. The rope is weak and can only accommodate a weight of 150 lbs. He weighs 140 lbs. Still he manages to cross the bridge and get rid of the cannibals with the diamonds without taking off any kind of clothing.

How?
**category** :
LOGIC

How?

Difficulty Popularity

I am a book lover and i saw a book for Pound 97.

I am short of money , so i borrowed Pound 50 from my sister and 50 from my brother = Pound 100.

I bought the book, and had Pound 3 change. I gave brother Pound 1 and my sister Pound 1 and kept the other Pound 1 for myself. Now I owe my mum Pound 49 and my brother Pound 49. 49+49 = 98 + my Pound 1 = 99.

Where is the missing Pound ?

I am short of money , so i borrowed Pound 50 from my sister and 50 from my brother = Pound 100.

I bought the book, and had Pound 3 change. I gave brother Pound 1 and my sister Pound 1 and kept the other Pound 1 for myself. Now I owe my mum Pound 49 and my brother Pound 49. 49+49 = 98 + my Pound 1 = 99.

Where is the missing Pound ?

Difficulty Popularity

Your friends are coming over to your birthday party. Your mum has bought this delicious giant doughnut for you guys. Unfortunately she had to go somewhere. Now you have to serve all of them including you.

There are a total of nine kids including you. None of you would mind a smaller piece. Can you cut this doughnut into nine pieces in just three straight cuts?

There are a total of nine kids including you. None of you would mind a smaller piece. Can you cut this doughnut into nine pieces in just three straight cuts?

Difficulty Popularity

A great meeting is held by a great logician where all the other logicians are called upon. The master logician takes them in a room and makes them sit in circle. A hat is placed on each of their heads. Now all of them can see the color of hats others are wearing but can’t see his own. They are told that there different colors of hats.

The master logician explains that a bell will be rung at regular intervals and the moment when a logician knows the color of his hat, he will leave on the next bell. If anyone leaves at the wrong bell, he will be disqualified and sent home.

All of them are assured of one thing that the puzzle will not be impossible for anyone of them. How will they manage the situation?
**category** :
LOGIC

The master logician explains that a bell will be rung at regular intervals and the moment when a logician knows the color of his hat, he will leave on the next bell. If anyone leaves at the wrong bell, he will be disqualified and sent home.

All of them are assured of one thing that the puzzle will not be impossible for anyone of them. How will they manage the situation?

Difficulty Popularity

A river should be crossed by a father, a mother and their two sons and two daughters.

There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?
**category** :
LOGIC

There are some rules that should be followed while crossing the river. There can be only two people in the raft while crossing. The daughters cannot be with their father unless there is the presence of the mother. The sons cannot be with their mothers unless the father is present. Unless the guard is on the board, the criminals cannot be with any of the family members. Only the adults like the father, the guard, and the mother knows to use the raft.

How will they cross the river?

Difficulty Popularity

Assuming i have an infinite supply of coins.

What is the fewest number of coins would be required in order to make sure each and every coin touched exactly three other coins.

What is the fewest number of coins would be required in order to make sure each and every coin touched exactly three other coins.

Difficulty Popularity

There is uniqueness between these five names

Nell Edna swati itaws and Ellen.

what uniqueness am i talking about ?

Nell Edna swati itaws and Ellen.

what uniqueness am i talking about ?

Difficulty Popularity

Time 12:21 is a palindrome as it reads the same forwards or backwards.

Whats the Whats the shortest interval between two palindromic times ?

example => 11:11 and 12:21 has interval of 1 hr 10 minutes.
**category** :
LOGIC

Whats the Whats the shortest interval between two palindromic times ?

example => 11:11 and 12:21 has interval of 1 hr 10 minutes.

22 February

I am always 1 to 6.

I am always 1...

21 February

Can you count the number of holes in the...

20 February

You have a glass of water and a glass of...

19 February

20 girls from NewJersey jumps into the e...

18 February

In which month people in Liverpool sleep...

17 February

Which superhero movie is hidden in the r...

16 February

A well-known chemist name from London wa...