The Jungle Book author Rudyard Kipling did explain how the leopard got its spots and camel its hump, but he never answered how the zebra got its stripes.
The latest video interview with the legendary Bill Gates, where he's talking about the Windows 8, Windows Phone 8 and the newest player in the tablet market, the Microsoft Surface.
Put your space and general knowledge to a test by answering some questions covering the achievements of mankind in our galaxy and beyond. A simple and intuitive way to build up your knowledge profile.
