Answer:
What is the easiest way to double your money?
What five-letter word becomes shorter when you add two letters to it?
Why couldn’t you hear the pterodactyl go to the bathroom?
Some are clean and some are dirty, but all are meant to get a chuckle. Most like it, some takes offense from it.
If you rub this there is a possibility of a magical fat man coming out.
I build up castles. I tear down mountains. I make some men blind. I help others to see.