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[quote]Originally posted by hot_pastrami
[b]
There are three light bulbs in a room with no windows, and a closed door. In front of you are three on-off switches. You know that each switch controls one of the light bulbs inside the room, but you don't know which switch matches which bulb, and they are not wired in any particular order.
Your job is to match each switch to it's bulb. You may only enter the room once, and you may not leave the door open. How do you accomplish your task?
Since the riddle doesn't say you're not inside the room, can't you just flip the switches one by one?
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