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257 replies to this topic

#11 Noodle

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Posted 14 May 2007 - 08:24 AM

Sounds logical to me!
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#12 Garrek99

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Posted 15 May 2007 - 01:41 AM

If you could label this puzzle one of two ways:
A "practical" puzzle or
a "logic" puzzle
which do you think would be most appropriate?

All I am trying to say is that solving some puzzles doesn't involve sensing and touching.
(it's no big deal, I don't really want my 2 weeks back)
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#13 pack_fanny

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Posted 17 May 2007 - 09:40 PM

ok so if you can only walk into the room once, than how can you eaisly determine the other two, you can only turn on one light switch or you wont be able to figure out the other two because two lights will be hot and will not be able to tell which switch is which.
help me figure this one out.
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#14 pack_fanny

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Posted 17 May 2007 - 10:06 PM

ok so never mind i got it.
i got temperarily confused.
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#15 bwellsy17

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Posted 18 May 2007 - 09:25 AM

I would hire a new electrician......one who is better at planning and mapping out the switches and receptacles, so it wouldn't be necessary to turn on a light from three rooms away.
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#16 larryhl

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Posted 06 June 2007 - 09:23 PM

This is the original puzzle (which rookie1ja adapted):

There is a room with a door (closed) and three light bulbs. Outside the room there are three switches, connected to the bulbs. You may manipulate the switches as you wish, but once you open the door you can't change them. Identify each switch with its bulb.

Notice the closed door. No looking into the room, looking at shadows, etc.

The only way to do it is to turn one on for some time, switch it off, turn on another switch, and walk into the room. The one that's on is connected to the switch you just turned on, the bulb that's hot is the one you turned on first, and the cool bulb is connected to the switch you didn't touch.
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#17 W_Stilwell

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Posted 08 June 2007 - 12:23 PM

Could you just plant them?
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#18 larryhl

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Posted 08 June 2007 - 02:33 PM

Could you just plant them?



They're light bulbs, not flower bulbs ><
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#19 sk8erfou

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Posted 11 June 2007 - 09:31 AM

here is a good solution... turn on 2 random switches... open the door to the other room... break 1 of the bulbs... go back to the switch room.... while looking at the door to the other room... turn one of the switches off... if the light goes you now know all 3... if it doesnt go out... you still know all 3
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#20 Numenor

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Posted 14 June 2007 - 08:42 PM

Well, "logic" puzzles mean that you have to think about it using logic, not necessarily meaning that it's solution must be logical.

Well, I've found another way to solve this puzzle, but it's almost the exact same as the one you are all presenting.

Turn on two of the switches, wait some time, turn one of them off, go in.
The one the is on should be obvious, the one that you just turned off would be the one that is off but hot, and the cold one is the one you never touched.

The solution you provided is:
Turn on one switch, wait, then turn that one off, turn on another one, then walk in. Repeat the remaining steps from the previous example.
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