If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

How can you leave a room with two legs and return with six legs?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

What number when divided in half becomes zero?

What can go through glass without breaking it?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

What can you hold in your right hand, but never in your left hand?