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

A sponge.

967

What starts with P and ends with E and has thousands of letters.

Post Office.

956

Why couldn't the leopard play hide and seek?

Because he was always spotted.

990

Why didn't Bill use his photographic memory?

He never developed it.

961

What invention lets you look through a wall?

A window.

960