Here are some randomly selected joke topics
A Head
What has a head and a tail but no body?
A coin.
Brains
Lack Of Brains Hinders Research
Fleas
Did you hear about the man who opened a flea circus?
He started it from scratch.
Trees
What is white, light and sugary and swings from trees?
A meringue-utan.
Birds
What do you get if you cross a bird and a snake>
A feather boa constrictor.
Santa
How do you know that Santa is good at karate?
Because he has a black belt!
Sing
What should you do if you lock yourself out of your house?
Keep singing until you find the right key.
Boss
We call our boss caterpillar.
He got where he is by crawling.
Elephants
Q: Why don't elephants like penguins?
A: They can't get the wrapper off.(Too whom it may concern: Penguins are a brand of cookies).