Puns
The fattest knight at King Arthur's round table was Sir Cumference. He ate too much pi.

I thought I saw an eye doctor on an Alaskan island, but it was an optical Aleutian.

She was only a whiskey maker, but he loved her still.

A rubber band pistol was confiscated during an algebra class because it was a weapon of maths disruption.

No matter how much you push the envelope, it remains stationery.

A dog gave birth in the park and was accused of littering.

A grenade thrown into a kitchen in France would result in Linoleum Blownapart.

Two silk worms had a race. They ended up in a tie.

A hole was found in a nudist camp wall. The police are looking into it.

Time flies like an arrow. Fruit flies like a banana.

Atheism is a non-prophet organization.

Two hats were hanging on a hat rack. One said: "You stay here; I'll go on a head."

I wondered why the cricket ball kept getting bigger. Then it hit me.