Here are some randomly selected joke topics
Birds
What kind of books do owls like to read?
Whoo-dunnits.
Door
Knock, knock.
Who's there?
Emmett.
Emmett who?
Emmett the front door, not the back one.
Keep
What can you keep even though you have given it to someone?
Your word.
Human
To err is human to really foul things up requires a computer.
Blondes
Q: What did the blonde say to the physicist?
A: "Why, I just _love_ nuclear fission! What do you use for bait?
Football Players
How many American college football players does it take to change a light bulb?
The entire team! And they all get a semester's credit for it!
Snow
Why is it not a good idea to wear snow boots?
Because they'll melt.
Nicer
I'll try being nicer if you'll try being smarter.
Idiot
Did you hear about the idiot who thought the Cote d'Azur was a blue jacket?