Want to earn some extra money?

What better way to earn a little extra money than by solving a math problem? The Clay Mathematics Institute, an institute “dedicated to increasing and disseminating mathematical knowledge,” started a contest in 2000.  Solve one of the seven problems (six since the resolution of the Poincare Conjecture by Grigoriy Perelman) selected by the Institute and win one million dollars. These seven problems, known as the Millennium Problems, are some of the most famous and important unsolved problems in all of mathematics.

So, it’s that simple.  Perhaps, with a lot of luck and brainpower, you can earn some extra money.

Good luck!