Four jokes
What rock group has four men that don't sing? -- Mount Rushmore.
Three men are on a boat. They have four cigarettes, but nothing to light them with. So, they throw a cigarette overboard and the whole boat becomes a cigarette lighter.
What do you call a fat psychic?
A four-chin teller.
What's big, green, has four legs, and if it falls out of a tree, it can kill you?
A pool table.