The Naked Scientists Forum

Author Topic: Brain Teasers  (Read 19079 times)

simeonie

• Sr. Member
• Posts: 351
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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Solvay_1927

• Sr. Member
• Posts: 383
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.)

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!

Solvay_1927

• Sr. Member
• Posts: 383
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?

ukmicky

• Moderator
• Neilep Level Member
• Posts: 3011
Re: Brain Teasers
« Reply #53 on: 20/09/2005 01:19:22 »
arrh the moving of matchsticks puzzle. over to you neil

Michael

rosy

• Neilep Level Member
• Posts: 1018
• Chemistry
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

Solvay_1927

• Sr. Member
• Posts: 383
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".

ChaoticBliss

• Jr. Member
• Posts: 14
• ...word...
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 »