Answer:
Some are clean and some are dirty, but all are meant to get a chuckle. Most like it, some takes offense from it.
Where did Bill Clinton and all the married men who are cheating to their wives take their mistresses shopping?
How is a person in jail like a sinking ship?
What happens to an egg every time you look at it?
What does a dyslexic agnostic insomniac do on his free time?
What did the piece of wood say when he saw the screwdriver and screws approaching?