Pictures:

When Bobby threw a ball as hard as he could, why did it just come back to him?

He threw it up in the air.

989

How do trash collectors learn their trade?

They pick things up as they go along.

973

Why didn't Joe buy camouflage trousers at the store?

He couldn't find them.

958

What is full of holes but still can hold a lot of water?

A sponge.

967

Why did the reporter go into the ice cream parlor?

He wanted the inside scoop.

968