Here are some randomly selected joke topics
Inferiority
My inferiority complexes aren't as good as yours
Paint
What kind of coat is put on when it is wet?
A coat of paint.
Cannonball
My brother said, 'I want a job as a human cannonball.'
I said, 'I'll bet you get fired.'
Like
Knock, knock.
Who's there?
Alec.
Alec who?
Alec Mary but I don't like you.
Executive
A good executive is a man who is happy to share the credit with the person who did all the work.
Cavemen
One caveman said to the other, 'What's that big thing with the long neck writing Jane Eyre?'
The other one said, 'That's Bronte-saurus.'
Scottish
What if you cross a legendary Scottish monster and a bad egg?
The Loch Ness pongster.
School
Brian: (eating his lunch at school)Teacher, I've got a bone stuck in my throat.
Teacher: Are you choking?
Brian: No, I'm serious.
Dogs
Where did the dog leave his car when he went shopping?
In a barking lot.