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Sean
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 Posted: Fri Dec 16, 2005 4:19 pm Post subject: Toughie |
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There are three switches in a room on the first floor and a lamp on the third floor. Each one is labeled On and Off. One (and only one) of the switches controls the lamp. There is no possible way for you to see whether the light is on or off from the first floor. You are alone in the house.
You are allowed to turn on and off the switches as often as you'd like.
However, you can only go upstairs once to check on the status of the lamp.
Determine which switch controls the lamp.
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x-x
Guest
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| Posted: Sun Dec 18, 2005 6:03 am Post subject: umm... |
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| can you turn them all on?
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qwetjbvcxcvbmn
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| Posted: Mon Dec 19, 2005 10:26 pm Post subject: Re: umm... |
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| go up-stairs and bring the lamp down-stairs
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All Me
Guest
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| Posted: Tue Dec 20, 2005 12:53 am Post subject: |
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| convert to omish. no one needs lamps anyways!
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Sean
Guest
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| Posted: Tue Dec 20, 2005 1:57 pm Post subject: Lamps |
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| You can turn them all on if you like. The lamp is not portable so it must stay upstairs.
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qwetjbvcxcvbmn
Guest
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| Posted: Tue Dec 27, 2005 3:29 am Post subject: WELL..... |
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| drill a hole in the ceiling
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qwetjbvcxcvbmn
Guest
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| Posted: Tue Dec 27, 2005 3:29 am Post subject: WELL..... |
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drill a hole in the ceiling 
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qwetjbvcxcvbmn
Guest
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| Posted: Tue Dec 27, 2005 3:30 am Post subject: WELL..... |
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| drill a hole in the ceiling
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qwetjbvcxcvbmn
Guest
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| Posted: Tue Dec 27, 2005 3:30 am Post subject: WELL..... |
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| drill a hole in the ceiling
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qwetjbvcxcvbmn
Guest
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| Posted: Tue Dec 27, 2005 3:30 am Post subject: WELL..... |
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| drill a hole in the ceiling
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qwetjbvcxcvbmn
Guest
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| Posted: Tue Dec 27, 2005 3:31 am Post subject: WELL..... |
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| drill a hole in the ceiling
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qwetjbvcxcvbmn
Guest
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| Posted: Tue Dec 27, 2005 3:31 am Post subject: WELL..... |
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| drill a hole in the ceiling
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muhahaha
New Member
Joined: 05 Dec 2005
Posts: 31
Location: Somewhere In Outer Space
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| Posted: Mon Jan 02, 2006 2:51 am Post subject: |
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| Wait, you are alone yet you need permission to go upstairs?? Me no likes this one.
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sofresh
Guest
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| Posted: Tue Jan 03, 2006 7:26 am Post subject: answer |
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could u turn one switch on and wait 5 minutes turn it off then turn on the next switch and go upstairs and see if:
1. the light is off and the bulb is hot then its the switch u turned on for 5 minutes
2. the light is on then its the 2nd
3. the light is off and its not hot then its the last switch
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Sean
Guest
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| Posted: Wed Jan 04, 2006 1:18 pm Post subject: Answer |
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| At last a logical and the correct answer. I don't understand why all these time wasters give drill holes in ceilings or give stupid answers. THis is a riddle forum and there is a neat solution to all riddles.
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Riddleman
Site Admin
Joined: 18 May 2005
Posts: 595
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| Posted: Wed Jan 04, 2006 8:35 pm Post subject: Re: answer |
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| sofresh wrote: | could u turn one switch on and wait 5 minutes turn it off then turn on the next switch and go upstairs and see if:
1. the light is off and the bulb is hot then its the switch u turned on for 5 minutes
2. the light is on then its the 2nd
3. the light is off and its not hot then its the last switch |
I recently posted this riddle again in a dfferent way. You're right.
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