Here are some randomly selected joke topics beginning with the letter 'L'
Lie
Politicians are a bit like restless sleepers.
First they lie on one side, and then on the other.
Liar
Doctor, Doctor everyone keeps calling me a liar.
I can't believe that!
Library
Why did the bird fly into the public library?
It was looking for bookworms.
Library
What do you call a dog that works in a library?
A hush-puppy!
License
I don't have a license to kill. I have a learner's permit.
License
Don't you need a license to be that ugly?
Library
What do you call a barber who cuts hair in a library?
A barbarian!!
Lie awake
What do you get if you cross an insomniac, a dyslexic, and an agnostic?
Someone who will lie awake all night wondering if there really is a dog.
Librarians
When librarians go fishing what do they use for bait?
Bookworms!