What do you call a fish without an eye?

Why do people go to bed?

What Does this text mean:

important=important

Your last good ping-pong ball fell into a narrow metal pipe embedded one foot deep in concrete.
How can you get it out undamaged, if all the tools you have are your tennis paddle, shoe laces, and plastic water bottle, which does not fit into the pipe?

Can you place three balls such that the equation shown in the picture holds true?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

How many times in a given day, minutes and hour clock comes in a straight line ?

The more of this there is, the less you see. What is it?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.