Here are some randomly selected joke topics
Ghosts
Why is a ghost like a cold breeze?
Because it makes people shiver.
Intelligent
Beam me up, Scotty. There's no intelligent life down here. - J.T. Kirk
Clouds
What did one cloud say to the other one?
Let's be cirrus.
Yodel
Knock knock
Who's there?
Little old lady
Little old lady who?
Gee, I didn't know you knew how to yodel.
Light Bulbs
How many statisticians does it take to change a light bulb?
One -- plus or minus three (small sample size).
Doctors
Doctor, doctor, what's the best cure for water on the knee?
A tap on the ankle.
Grandchildren
Do you have any grandchildren?
No, all my children are just ordinary.
Business Consultant
An business consultant is one who can tell you how to run your business but who isn't smart enough to run his own.
Pizza
What do you call the boss of a pizza parlor?
The big cheese.