Here are some randomly selected joke topics
Call
Knock, knock.
Who's there?
Joan.
Joan who?
Joan call us, we'll call you.
Cannibals
First cannibal: What are you cooking for dinner?
Second cannibal: Shut up and get back in the oven.
Doctors
Doctor, doctor, I keep thinking that I've been here before.
Oh, no, not you again.
Sausage Rolls
How do you make a sausage roll?
Push it.
Cows
What type of events do cows like to go to?
Barn Dances.
Teeth
Did you hear about the singer who went to the dentist?
He gave her falsetto teeth.
Office
"Duties will vary."
Anyone in the office can boss you around and tell you what to do.
Elephants
Q: Why are elephants large, grey and wrinkled?
A: Because if they were small, white and smooth they'd be asprins.
Drummers
How many drummers does it take to change a light bulb?
None. They have a drum machine to do that that now.