Who Broke the Glass?
One of the following four students: Avi, Benny, Gili, and Danny – broke a glass. The principal asks them who did it. Here are the answers she received:
Avi: I know for certain that whoever broke the glass, it was not me or Benny.
Benny: I know for certain that whoever broke the glass, it was not me or Danny.
Gili: I know for certain that whoever broke the glass, it was not me or Benny.
Danny: I know for certain that whoever broke the glass, it was not me or Avi.
It is known that only one of them broke the glass, and it is also known that three of the students told the truth, and one lied. So who broke the glass?
Difficulty level (1 very easy - 10 very hard): 2
Topics:
Logic
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Reasoning / Logic
Combinatorics
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Case Analysis / Checking Cases
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Processes / Procedures
Logic
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Truth-tellers and Liars Problems
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