# The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.

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JEK595
Just a Wandering Enigma

 Posted: Tue Feb 12, 2002 2:30 am    Post subject: 1 Simply prove that 7 is half of 12. ------------------ -grace the mind with puzzles, games, and tapioca.- -If at first you don't succeed, try, try again. (Not suitable for skydivers.)
The Dark
Daedalian Member

 Posted: Tue Feb 12, 2002 2:35 am    Post subject: 2 Easy: XII sliced horizontally is VII
DJC
Daedalian Member

 Posted: Tue Feb 12, 2002 3:36 am    Post subject: 3 Base 10 or Base 12?
tigg
Daedalian Member

 Posted: Tue Feb 12, 2002 4:11 am    Post subject: 4 or... you could define 'half' as 7/12
tigg
Daedalian Member

 Posted: Tue Feb 12, 2002 4:17 am    Post subject: 5 actually, when I was young, my neighbor was a farmer. when he sold us a dozen ears of corn (for a dollar) he put 14 in the bag. so there you go.
oxford student
Guest

 Posted: Wed Feb 13, 2002 8:33 am    Post subject: 6 Talk about an old puzzle. I bet even the Romans had thought of this one!
Sparhawk
Daedalian Member

 Posted: Fri Feb 15, 2002 3:41 pm    Post subject: 7 For people who didn't get Oxford Student's comment, I believe that what you do is define 12 as XII using Roman numerals. Then you take the top half of the XII to get VII, which is 7 using Roman numerals.
groza528
No Place Like Home

 Posted: Fri Feb 15, 2002 4:06 pm    Post subject: 8 I thought somebody else already posted the solution... ------------------ If you think the little things don't matter, try falling asleep with a mosquito in your room.
impossibleroot
Hi-Keeba!

 Posted: Fri Feb 15, 2002 4:15 pm    Post subject: 9 ...invisibly. 'The Dark' posted the solution (the second post). I've taken to the habit of highlighting entire posts just to make sure I'm not missing something!
groza528
No Place Like Home

 Posted: Fri Feb 15, 2002 4:29 pm    Post subject: 10 aha, so THAT's it. I knew somebody had answered it. ------------------ If you think the little things don't matter, try falling asleep with a mosquito in your room.
The Dark
Daedalian Member

 Posted: Sat Feb 16, 2002 12:21 pm    Post subject: 11 Hmm, maybe my post should have been more clear, or possibly my post should have been less clear
mole
Subterranean Member

 Posted: Sat Feb 16, 2002 12:22 pm    Post subject: 12 "It is too clear, and so it is hard to see." Whatever happened to ZenBeam?
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