Here are some randomly selected joke topics
Dogs
What dog smells of onions?
A hot dog.
Alcohol
Alcohol and calculus don't mix. Never drink and derive.
Ignorance
If ignorance is bliss, you must be the happiest person alive.
Wisdom
What do you get from a well-educated oyster?
Pearls of wisdom.
Whales
Yo' mama's so fat, when she jumped in the ocean, the whales started singing, "We are family!"
People
Who can tell people Where to get off and get away with it?
A bus driver.
Robbery
Did you hear about the music store that was robbed last night?
The thieves made off with the lute.
Pick Your Friends
You can pick your friends, and you can pick your nose, but you can't
pick your friend's nose.
Engineers
How many ROCK AND ROLL SOUND ENGINEERS does it take to change a light-bulb?
"Did you say something?"