Which is the most prejudiced game show? What makes office workers dishonest? What makes people park in disabled parking spots?

All the questions are answered in a new book – already a New York Times bestseller – called Freakonomics, a book which can "cut through the crap to reveal life’s hidden codes." Not in a creepy Da Vinci Code spooky monk way, but in a funny, real way.

Don’t believe us? Take this online Freakonomics quiz to find out how much you really know about the world…

Take the Freakonomics Challenge now

Find the cheapest place to buy the Freakonomics book at Kelkoo.co.uk