Pictures:

What invention lets you look through a wall?

A window.

960

What is blue and smells like red paint?

Blue paint.

974

Why did Barry get heartburn when he ate the birthday cake?

He forgot to take off the candles.

963

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

A sponge.

967

Why couldn't the leopard play hide and seek?

Because he was always spotted.

990