Pictures:

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

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

What do you call a train carrying bubble gum?

A chew-chew train.

959

Why couldn't the leopard play hide and seek?

Because he was always spotted.

990