Take away the whole and some still remain. What is it?

Give it food and it will live; give it water and it will die.

A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

Can you place six X (crosses) in below board without making three in a row in any way ?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

An ape is trying to climb on a pole that is 60 feet high. Due to the slippery surface, the ape climbs 3 feet in a minute only to slip back 2 feet.

How much time do you think the monkey will take to reach the top of the pole?

Solve below rebus puzzle?

Find the next number in the sequence

5 12 24 36 ?

Replace the question mark with the correct number below.

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?