Plot: Back by special demand, Karl and Adam take on yet another episode of answering questions from the studio audience and the website. In this edition Karl and Adam tackle questions about what’s in water other than water? How do you win Lotto (or why you can’t win Lotto)? Why the sky is blue? And what happens to your body when you go under general anaesthetic? Karl conducts a test to see if black cars get hotter than white ones when left in the sun