Pictures:

Why didn't Bill use his photographic memory?

He never developed it.

961

What do you call a train carrying bubble gum?

A chew-chew train.

959

Why shouldn't you write with a broken pencil?

Because it's pointless.

971

If you threw a white stone into the Red Sea, what would it become?

Wet.

994

When does Friday come before Thursday?

In the dictionary.

992