Why do people go to bed?

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

By what process could you make a 'Tea-Table' into food?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Why are all black people so quick ?

When does a USA Potato change its nationality?

Can you make a six-letter word using the letters N, A and B ?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

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