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The Mighty Fool Inner circle I feel like a big-top tent having 2140 Posts |
Youre in a house. There is a light bulb hanging from a wire in the attic. The bulb is about 3 feet from the attic floor. To begin with, the attic light is OFF. In the basement, there are 3 switches, labeled 1 2 and 3. ONE of these three switches turns the attic light on and off, the other two switches do absolutely nothing. Your mission is to determine which switch controlls the attic light. (read that again...your job is NOT to get the attic light TURNED ON, but to determine WHICH SWITCH controls it.) You can flip the switches as many times or in any combination you like....all at once, one or two at a time, on again, off again, whatever. The catch is, you can only check on the attic light bulb ONCE. After you make one examination of the light bulb in the attic, the cellar door slams shut & magicly locks. The house has no windows, the walls are invincible, the wiring is all within the walls (except the wire attatched to the bulb), youre alone, theres no phone, the door leading to the attic is sealed airtight until opened, theres no fusebox, and there are 3 floors and 3 flights of stairs between the attic & the basement.
So.....whadya do?
Everybody wants to beleive.....we just help them along.
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pxs Loyal user London 284 Posts |
Switch switches 1 and 2
Wait 1 minute Switch switch 2 Check bulb If it is on - the working switch is 1 If it is off, but the bulb is warm - the working switch is 2 If it is off, and the bulb is cold - the working switch is 3 |
The Mighty Fool Inner circle I feel like a big-top tent having 2140 Posts |
Curses!! Solved again!!
Everybody wants to beleive.....we just help them along.
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magicgeorge Inner circle Belfast 4299 Posts |
LOL, don't worry Mr Fool, we've had this one in here a few times with a couple of extra bulbs.
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