Here are some randomly selected joke topics
Girlfriends
Joe: My girlfriend uses lemon juice for her complexion.
Bob: Maybe that's why she always looks so sour-faced.
Ducks
What happens when ducks fly backwards?
They quack up.
Cows
Q:What do you call a mad cow?
A:mad cow
Money
Knock, knock.
Who's there?
Jimmy.
Jimmy who?
Jimmy all your money.
Doctors
Doctor, Doctor I keep thinking I'm God.
When did this start?
Well first I created the sun, then the earth...
This Morning
I heard something this morning that really made me open my eyes.
What was it?
My alarm clock.
Boa Constrictors
Did you hear about the two boa constrictors who recently got married?
They had a crush on each other.
Teachers
What is the difference between a locomotive engineer and a teacher?
One minds the train, the other trains the mind.
Rabbits
How do rabbits stay cool in the summer?
They have air conditioning.