If you love quizzes you'll find Smarty Pins from Google Maps addictive and fun. The game begins with a certain amount of kilometres and before they run out the goal is to answer as many general knowledge questions as possible by pinning the answers to the map. If you misplace your pin the distance from the correct location is subtracted from your kilometres. There are several categories such as geography or culture ('What Irish city holds an annual oyster festival?') and if you're stuck you can take a hint.

smartypins.withgoogle.com