WHY DO YOUR FINGERS GO WRINKLY IN THE BATH? HOW LONG CAN GOLDFISH REMEMBER THINGS? WHO THOUGHT UP NEWTON'S FIRST LAW? Science is all about finding answers to mind-boggling questions -- so following the hugely successful How Many Moons Does the Earth Have?, here are another 100 brain-teasers to test yourself, discover some amazing answers, and learn a lot of stuff along the way. Where does brown belong in the spectrum?...