Here are some randomly selected joke topics
Dogs
What dog smells of onions?
A hot dog.
Caterpillar
What does a caterpillar do every 1st of January?
He turns over a new leaf.
Animals
I think animal testing is a terrible idea they get all nervous and give the wrong answers.
Knock Knock
Knock knock,
Who's there?
Kermit.
Kermit who?
Kermit a crime and you will go to jail.
Door
Knock, knock.
Who's there?
Ima.
Ima who?
Ima gonna break down this
door if you don't open it!
Waiters
Waiter, waiter, there's a twig in my soup.
Well you did order bird's nest soup, sir.
Coke
I drank eight cokes and burped 7-up
Victorian
What is vicious, Victorian and lives at the bottom of the sea?
Jack the Kipper.
Signs
Sign in a restaurant window: "Eat now - Pay waiter."