Capital

There was a blonde, a redhead and a brunette. The redhead and the brunette were always making fun of the blonde saying how dumb she was.
So, the blonde decided to prove the other two wrong by learning the capitals of every country in the world.
The next time they were together, the redhead and the brunette started to make fun of the blonde, who then told them that she knew the capitals of every country in the world.
The redhead said "Oh yeah, what's the capital of England?" The blonde replied "E".