Riddle: In a vault there are three lightbulbs dangling from the ceiling. Outside the vault there are three swithces. Each bulb is wired to a seperate switch.
Starting on the outside of the vault you have to figure out witch bulb goes to which switch. You may only go in the room once. You can't see into the room from the outside. There is nobody else with you. How do you figure out witch switch goes with witch bulb?
Answer: You will have to email me if you think you know the answer. It can be done! no tricks.