Here's a taster of the board game - and a chance for you to prove your sharpness.

Answer the 12 multi-choice puzzles as fast as you can. At the end, we'll calculate your Perplex City IQ and give you a £5 voucher for Firebox.com!

And once you've played, maybe you'd like to find out more about the world of Perplex City and the hunt for the £100,000 Cube. Interested? Thought so. But now, play.

Would you like to host this game on your site or blog? Click here to learn how!