Here are some randomly selected joke topics
teachers
Why did the teacher need to wear dark glasses?
Because she had such a bright class.
apartments
Why are they called apartments, when they're all stuck together?
banks
Why can't you keep any secrets in a bank?
Because of all the tellers.
pigs
Joe: My pig has lost his voice.
Jake: Really. I bet he is upset?
Joe: Oh yeah, he's disgruntled!
computer dating
"I'm all for computer dating, but I wouldn't want one to marry my sister."
cats
What do you call a person who steals cats?
A purr-snatcher.
river
Denial: A river in Egypt!
blondes
I might be a dumb blonde but I am good at speling.
soup
Waiter, there's a hand in my soup.
"That's not your soup, sir, it's the finger bowl.