pi
Two, One to hold the light and, one to drink until the room starts spinning!
69
Two: One to change it, and the other one to change it back again.
To get to the other side
The same way he solved all other problems: He worked it out with a pencil and paper.
Because of the Fibonacci sequins.
Because he kept throwing his pi in other peoples faces!
Pizza of course! If z = radius of the pizza and a = the height then * radius2 * height = Pi * z * z * a = Pizza.