I am quite hot but become too cold if you remove the first two letters. What am I?

What have one eye but still cannot see?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What does an Island and the letter T have in common?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

Why is the longest human nose just 11 inches?

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