Anyone seen this riddle doing the rounds. Riddle: It is 7:00 am. and you are asleep. There is a knock on your door. Behind the door are your parents who have arrived for breakfast. In your fridge you have bread, milk (pasteurized), fruit juice, and a jar of jam. What do you open first? I think I know the answer but don't want to give away just yet. What do others think? And does anyone else have a good riddle to puzzle over?