A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

A bomb exploded in a room full of married couples and no one died. How?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What jumps when it walks and sits when it stands?

I have teeth but i don't bite. Who Am I ?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?