The latest collection of terrific trivia from the bestselling author of "Why Eating Bogeys is Good For You" and double Blue Peter Best Book with Facts Award winner. The answers to these incredible questions will boggle your brain! Can rocks have snot?Why do doughnuts have holes in the middle?Could a human child ever be raised by animals?What have hyenas got to laugh about?And why is it impossible to belch after blast-off?!