What can you catch but never throw?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

What runs around the whole yard without moving?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

What is always in front of you but can’t be seen?

There is something which is always coming but never arrives?

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?

The more it dries, the wetter it becomes. Can you tell what it is?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

It is always ahead of me yet I can never see it. What is it?