Pictures:

Why shouldn't you write with a broken pencil?

Because it's pointless.

971

What 5 letter word becomes shorter when you add 2 letters to it?

The word 'short'.

988

Why did the cookie go to the doctor?

Because it felt crummy.

962

What invention lets you look through a wall?

A window.

960

When does Friday come before Thursday?

In the dictionary.

992