Mother of all final exams

This link (found via Marginal Revolution) should keep you busy for a while.

Answers and explanations are here, but really do try it before you look at the answers.

That reminded me of something that I saw a long time ago. It was a really funny piece called The Mother of All Final Exams. I Googled the phrase and found it on, of all things, the archive of an e-mail discussion list devoted to teaching economics.

You want the answers? Don't look at me!