Excuse me — did I hear somebody say Monty Hall? On first encounter this question, which has been showing up all over the Net, seems inane because the answer seems so obvious. However, as with the infamous Monty-Hall-three-doors-and-one-prize-problem (see The Straight Dope: “On Let’s Make a Deal” you pick Door #1, 02-Nov-1990), the obvious answer … Continue reading An airplane taxies in one direction on a moving conveyor belt going the opposite direction. Can the plane take off?