A Blonde, a Brunette, and a Redhead are lost in the woods. They are walking for hours when the blonde trips on a magic lamp. They rub it, and a genie comes out.

The genie says: "If you say one true thing about yourself, I'll send you out of the forest. If it is untrue, you have to find your own way out!"

The Brunette went first: "I'm very pretty." She said, and suddenly she disappeared.

The Redhead went next: "I'm very smart." She said, and she suddenly disappeared as well.

The Blonde started her sentence with: "I think..." and that blonde is still trying to find her way out of the forest.