Pentagon

When does a pentagon not have 5 sides?

When it's intersected by a plane

A marine comes back from vietnam after fighting for a year.

He is sent to the pentagon. The pentagon asks him: Do you want to get anything for your sacrifices?

The marine says: I want a dollar for every inch from the tip of my penis to my balls.

The pentagos says: You sure you don't want something else?

The marine says: No sir.

One of the generals takes a ruler and starts to measure. But he does not find the balls.

General:Where are your balls marine?

Marine: In vietnam