What brings you down but never up?

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 are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

I have eight fingers and two thumbs but I do not live. What Am I?

A Monkey, a squirrel, and an Eagle are racing to the top of the mango tree. Assuming all these animals are in perfect shape, Which animal will reach to Banana first?

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

What is the end of everything?