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Bank Robbery (Posted on 2003-01-29) Difficulty: 3 of 5
A cop arrested four suspects for the bank robbery. When he interviewed them, each made two statements. From his infrared lie-detector he knew that each man made one "true" and one "false" statement. As a result, he soon found out the culprit.

Given the following statements, can you determine who the culprit was?

‘A’ said: “I did not do it. B did.”

‘B’ said: “A did not do it. C did.”

‘C’ said: “B did not do it. I did.”

‘D’ said: “C did not do it. A did.”

  Submitted by Ravi Raja    
Rating: 2.5333 (15 votes)
Solution: (Hide)
D was the culprit.

Each man gave one ‘did’ and one ‘did not’ statement. So, if the ‘did’ statement is true, so must the ‘did not’ be true. But this is impossible, one of the two statements must be false in each case. Therefore each ‘did’ statement is false, and each ‘did not’ statement true.

This rules out A, B, C, leaving D as the culprit.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionExplanation to Puzzle AnswerK Sengupta2022-05-22 22:29:56
Puzzle AnswerK Sengupta2022-05-22 10:01:27
SolutionI got it! :)Heartberry2004-08-26 16:43:49
SolutionSolutionLewis2003-06-20 10:33:58
Simple SolutionGamer2003-03-08 07:41:34
Solutionejaculoy2003-02-13 04:44:24
Insufficient Evidencematt2003-02-03 11:22:47
Solution!!!Shellie2003-02-02 11:16:47
re: Solution?Dalveer2003-01-31 23:36:16
SolutionDalveer2003-01-31 23:32:14
Solution?Michael2003-01-31 04:27:44
CHECK THIS OUTHarish2003-01-30 00:24:29
No Subjectdave2003-01-29 23:20:11
SolutionNo SubjectCalvin Cahail2003-01-29 12:14:52
solutionsarah2003-01-29 07:17:39
I think I have the solutionnichole2003-01-29 05:50:38
re: solutionTomM2003-01-29 04:48:53
solutionCory Taylor2003-01-29 04:20:35
SolutionThe solutionMatthew Darwin2003-01-29 02:29:38
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