Here are some randomly selected joke topics
Cows
Knock, knock.
Who's there?
Tilly.
Tilly who?
Tilly cows come home.
Leave
I'd like to leave you with one thought...but I'm not sure you have anywhere to put it!
Missing
How do you find a missing railway train?
Follow its tracks.
Cars
What do cars do at the disco?
Brake dance.
Husbands
Did you hear about the husband who took his wife for some plastic surgery?
He had her credit cards removed!
Pessimists
How many PESSIMISTS does it take to change a light-bulb?
"What's the point? It'll only blow again."
Accountant
Accountant - someone you hire to explain that you didn't make the money you did.
Lawyers
What is the difference between a lawyer and a vampire?
A vampire only sucks blood at night.
Eel
What do you get if you cross an eel with a shopper?
A slippery customer.