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Logic and Stamps (Posted on 2004-07-31) Difficulty: 4 of 5
A moderator takes a set of 8 stamps, 4 red and 4 green, known to three logicians, and affixes two to the forehead of each logician so that each logician can see all the other stamps except those two in the moderator's pocket and the two on his or her own head. He asks them in turn if they know the colors of their own stamps:
1. A: "No"
2. B: "No"
3. C: "No"
4. A: "No"
5. B: "Yes"

What are the colors of B's stamps?

See The Solution Submitted by Brian Smith    
Rating: 2.5000 (8 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
What are the colors of B's stamps?Bruno2004-12-09 03:08:17
solutionKristin2004-09-08 23:38:52
SolutionSolutionArpan2004-08-17 13:01:13
Questionre: Solutiondhruv2004-08-17 06:45:10
stampsMichele Rossi2004-08-15 20:58:55
solutionamy2004-08-15 16:08:54
logicallyRobert Botwood2004-08-10 22:56:44
solutionS2004-08-10 19:22:51
my solutionPete Za2004-08-08 17:37:36
SolutionsolutionnnnnnnKelly2004-08-06 22:43:06
SolutionNo Subjectmatthew2004-08-05 04:30:50
solutionmatthew2004-08-04 13:04:48
SolutionEliminationBractals2004-08-02 11:49:20
SolutionNo thinking neededFederico Kereki2004-08-02 07:37:12
solutiona.t.2004-08-02 01:45:06
My solutionangela schultz2004-07-31 18:43:07
SolutionSolutionDJ2004-07-31 13:00:35
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