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dpellerin

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Reply with quote  #1 
There are three light bulbs in a room controlled by three switches right outside the room. Each light bulb is controlled by one switch. You can fiddle with the switches whatever way you choose during which time you cannot see the light bulbs since the door is closed. Once you have set the switches the way you like, you may open the door and, without touching the switches again, determine which switch turns on which  light bulb.

How would you go about  this?
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LynnMcLaren

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Reply with quote  #2 
Hi Dp, (((( Smiles ))))

I don't know.. With X-ray vision I suppose...
I would be blind sighted if I couldn't see through the door..
To find the light's in the first place....
Expecially if it's real dark...
I would never make it then...
I like my light bulbs and switches in plain view...
Where I can see them..
Easier that way...
Then I know how they work...

Which switch ????
DARCY...... Your real good at theses things..
Anyone else but me... I'm no good at this kind of problem solveing..
Abishag... can you figure this one out...
Whats the answer here......
I'd like to know....
Good one. Dp..
Take Care  ((( Smiles )))


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Lynn
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dpellerin

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Reply with quote  #3 
Note: there are regular light switches with up=on and down=off
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LynnMcLaren

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Reply with quote  #4 
Thank's Dp... (((( Smiles ))))

I enjoyed that...
The up and down ones are more simplified for use..
Then the knob's or round ones..
But where I live...
I have ..
Oh.. What are theses...
They are one piece..
Push touch top & touch bottom switches..
I'd never make it as an electrician....
What are theses kind of switchs called....
See... I just don't know.....
Darcy probably does..
She's good at theses types of quiz's..
She's a good guess'er..    
You Take Care Dp......

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Darcy

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Reply with quote  #5 
Lynn,

Although I'm pretty good at figuring out word puzzles, I'm almost useless at figuring out riddles that involve complex math formulas, which I suspect is what is needed to figure out the switch riddle.  However, I am quite certain I could make up some nonsense answer that might even sound quite convincing. 

Darcy
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LynnMcLaren

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Reply with quote  #6 
Hi Darcy,  ((( Smiles )))

Oh no.. Math.. I'm not that good at math anymore..
Algebra and stuff like that...
Was so long ago and soooooo forgotten by now....
I do simple math with a calculator now..
See what all this technology has done to alot of us...
But I like the part you wrote here...
Sounds fun...
Untill some math whiz can figure it out..
Works for me... (((( Smiles ))))
  
Quote:

However, I am quite certain I could make up some nonsense answer that might even sound quite convincing. 




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Lynn
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dpellerin

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Reply with quote  #7 
There is no math in this riddle. One only needs to think "outside the box".
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LynnMcLaren

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Reply with quote  #8 
Hi Dp ((( Smiles )))

O.K... So there's no math in this riddle...
Just thinking outside of the box..
Darcy...  Sounding convincing might work ??? 
And the door is closed..
But there has to be a way to see which switch is turning on which light..
Is there a window somewhere like on top of the closed door...
Or a crack somewhere or split in the wall..
Or maybe.. You can see light under the closed door...
You know I've seen doors before where there is a gap..
Under the door or around the door...
That lets light shine through...
Or a peek hole one can look through...
Or just takeing off the whole switch plate cover..
Is their a gap somewhere there as well.. 
Otherwise.. I vote X-ray vision...
Like superman.. couldn't he see through walls....
At least I think he could..
I can't though.. but windows and gaps and peek holes..
might work to.....................
Unless one happens to be in the room inside the closed door..
So you don't need to open the door after all...
As being inside the box in the first place...
Could work too....

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Lynn
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dpellerin

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Reply with quote  #9 
-no peeking through holes or cracks
-no x-ray vision
-no windows
-no standing inside the room when flicking switches
-no removal of the switch plate cover required

There is a way to do this without seeing the lights until you open the door.

Think about it.

I'll give a hint tomorrow if someone does not come up with it until then.


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Reply with quote  #10 
Hi there, Abishag here @ 7:45 P.M. EST, Monday
   OK, I called my husband because I am not good with riddles.  He came up with this answer:
  1.) Turn on 1st light switch, wait one minute (gets hot)
  2.) Skip this light switch (#2), do not turn it on
  3.) turn on #3, go in immediately to the room.
Touch all three light bulbs.  #1 will be hot (been on longest)
                                       #2 will be cool (never turned on)
                                       #3 will be only warm, as it's been
                                            on for only several seconds.
   So, how'd we do?  Makes sense to me.  Ha! Ha! 
   Awaiting your reply Denis.  Blessings! Thanks for the fun!
                                              Abishag <>< 
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Darcy

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Reply with quote  #11 
Abishag,

Your answer makes sense to me.  I just couldn't think outside the box on this one. The only thing I could come up with was to bring in Superman with his x-ray vision, or a psychic.  I suspect DP will be here soon to confirm whether your answer is correct.


Darcy

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LynnMcLaren

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Reply with quote  #12 
Oh no... No cracks or holes or gaps or windows..
Just a bunch of solid walls...
Yet... Then Abishag arrived on the scene..
Has her husband came up with the solution ???
It wouldn't work at my home because I don't think my wall switches..
ever got warm or hot.. I have never actually thought about it really..
Now I'll be testing them all night to see for sure...
If thats the answer... 
But maybe..
With the old fashion switch kind..
It does... 


Quote:

-no peeking through holes or cracks
-no x-ray vision
-no windows
-no standing inside the room when flicking switches
-no removal of the switch plate cover required




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Lynn
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LynnMcLaren

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Reply with quote  #13 
Oh Good, (((( Smiles ))))

I got one vote for X-ray vision..
That worked the best for me...
Then I could bypass the bulbs and switches..
So is it the bulbs that get warm/hot..
Or the wall switches that do...
Let Dp explain this concept better...
If this is how to do it...
Interesting Abishag...
We will see if your husband is on to something here... (((( Smiles )))
Time will tell.....

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Lynn
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dpellerin

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Reply with quote  #14 
Yes Abishag, that would work. You don't really need to touch #2 though as one would plainly see it is the only one turned off.

Another version is (assuming all switched are off to begin with)

Turn on #1 and #3 for a  couple of minutes and then turn off #1 but leave #3 on then open the door.

#1 is turned off but hot
#2 is off but cold
#3 is turned on (you don't really need to feel #3 as it is the only one turned on)

The difference here is you you have two lights that are turned off and one turned on. So you need to feel the two that are off to see which one is hot and which is cold. In your version, you need to feel the two that are turned on. But both versions work nonetheless.
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dpellerin

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Reply with quote  #15 
Forgot to add: Nicely done Abishag and thank you for all for participating.
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