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Author Topic: Brain Teasers  (Read 19475 times)

Offline simeonie

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Re: Brain Teasers
« Reply #50 on: 19/09/2005 18:33:30 »
YOu could walk or just go to her house
and give her the key

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Offline Solvay_1927

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Re: Brain Teasers
« Reply #51 on: 20/09/2005 00:15:46 »
Man padlocks the package and sends it to woman. (Man keeps key to his padlock.)

Woman receives package, ADDS a second padlock, and posts package back to man.  (Woman keeps key to HER padlock.)

Man gets package back, unlocks his (the first) padlock, and sends package back to woman.

Woman receives the package, which now only has HER (the second) padlock, which she unlocks, and takes out her ring.

I cracked it! Oh yes! yes! yes! Come to momma! Woohah!
 

Offline Solvay_1927

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Re: Brain Teasers
« Reply #52 on: 20/09/2005 00:42:31 »
Anyone fancy a nice easy quick puzzle while we wait for a better one?

Imagine setting out the following Roman Numeral equation using matchsticks:

X = 1 + X1

Question: What's the smallest number of matchsticks you have to move to make the equation correct?
 

Offline ukmicky

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Re: Brain Teasers
« Reply #53 on: 20/09/2005 01:19:22 »
arrh the moving of matchsticks puzzle. over to you neil

Michael                                      
 

Offline rosy

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Re: Brain Teasers
« Reply #54 on: 20/09/2005 11:09:03 »
One.
Move the vertical bit from the + (making a minus sign) and put it infront of the X on the left hand side, thus:
-X = 1 - X1
or:
-10 = 1 - 11
 

Offline Solvay_1927

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Re: Brain Teasers
« Reply #55 on: 20/09/2005 23:34:38 »
Rosy - as Roy Walker used to say on Catchphrase (on TV): "It's good, but it's not right".

The correct answer is zero.

(If you can't see why, just try standing on your head.)
 

Offline ChaoticBliss

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Brain Teasers
« Reply #56 on: 11/04/2007 05:57:29 »
As to the one neilep asked earlier, you turn on one of the switches for a really long time. Then turn another one of them on and walk in. If it is off but hot, it is the first one. If it is on, then...well you get it. If it is neither, it is the third switch. Ta-daa!

ChaoticBliss
 

The Naked Scientists Forum

Brain Teasers
« Reply #56 on: 11/04/2007 05:57:29 »

 

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