Here are some randomly selected joke topics
Coffee
Patient: Doctor, I think that I'm a cup of coffee.
Doctor: Oh, do perk up and don't be such a drip.
Cats
What do you call a cat who ate a duck?
A duck-filled-fatty-puss.
Engineer
Did you hear about the bad tempered civil engineer?
He always built crossroads.
Christmas
What do you call a man who claps his hands at Christmas time?
Santapplause.
Thunder
Knock, knock.
Who's there?
Thunder.
Thunder who?
Thunder the table.
Driving
I don't care who you are, what you are driving, or where you would rather be
Count Dracula
What do you get if you cross Count Dracula with a plumber?
A drain in the neck.
Doctors
Doctor, Doctor I think I'm a dog.
How long have you felt like this?
Ever since I was a puppy!
Brightest
He's not the brightest bulb on the Christmas tree.