What do you win with three numbers on the lottery?

Answer 1

You'll need a time machine.

Best bet is the Tipler Cylinder. Procure a cylinder, infinite in length, almost infinite density. Set it spinning at almost infinite angular speed. Now, board your spaceship, which must be capable of travelling at nearly light speed. Set it to follow a certain spiral orbit around the Cylinder. At a certain point in the orbit it will be going backwards in time, so if you time carefully when you jump off, you'll be able to go back and submit your ticket. Of course, once you've completed this fantastic project, you'll need several billion jackpots just to pay off your overdraft...

Or you could just buy a lottery ticket anyway and hope for the best...!