Here are some randomly selected joke topics
Water
Diner: Waiter, this water is cloudy.
Waiter: No it isn't, sir. It's the glass that's dirty.
Cowboys
'Did you hear about the cowboy who was hanged for wearing paper trousers?'
'No, why was that?'
'Because they were rustling.'
Ants
Why was the baby ant so confused?
Because all of his uncles were ants.
Infectious Disease
Knock, knock.
Who's there?
Ivan.
Ivan who?
Ivan infectious disease.
Girlfriends
What did the firefly say to his girlfriend?
You light up my life.
Firemen
How many firemen does it take to change a light bulb?
Four - three to cut a hole in the roof and one to change the bulb.
Ghosts
Why do ghosts never feel guilty about what they have done?
Because they have a clear conscience.
Florist
Did you hear about the florist who had two children?
One is a budding genius and the other one is a blooming idiot.
Rabbits
What is the difference between a crazy rabbit and a forged five pound note?
One is a mad bunny, the other is bad money.