Here are some randomly selected joke topics
Knock Knock
Knock, knock.
Who's there?
Major.
Major who?
Major mind up to open the door yet?
Swiss
How do you make a Swiss roll?
Push him off the mountain.
School
Did you hear about the high class private school where all the pupils were very smelly?
Only filthy rich kids were allowed to go there.
Faithful
Knock knock!
Who's there?
Oakham.
Oakham who?
Oakham all ye faithful!
Pigs
Knock, knock
Who's there?
Pig
Pig who?
Pig on someone your own size!
Tonic
Doctor, doctor, I keep thinking I'm a bottle of gin.
I think you need a little tonic.
Golf
My brother went to the doctor's and said, 'Some days, I think I'm a golf ball.'
The doctor said, 'Well you've come a fair way to see me...'
Star Wars
Waiter, there's a strange film on my soup.
Well, what do you expect for one Dollar, Star Wars?
Soup
Waiter, there's a hand in my soup.
"That's not your soup, sir, it's the finger bowl.