THINKING TIME! =) You are in a hallway. There are two doors. Each door has a guard who is the only person allowed to open that door. When one door is opened, you are sucked into a wormhole forever. When the other door is opened, you are sucked into a place that is gorgeous and peaceful. You know for a fact that one of the guards always lies. You also know for a fact that one of the guards always tells the truth. You don’t know which guard is which. Once one door opens, you are sucked into that door’s world. You are allowed to ask ONE QUESTION and you must ask that ONE QUESTION (exactly the same) to each guard. So... WHAT IS THE ONE QUESTION THAT YOU CAN ASK (EACH GUARD) TO KNOW FOR SURE WHICH DOOR LEADS TO THE PARADISE?