What's the safest way out of these two caves?

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SUMMARY

The discussion centers on a classic logic puzzle involving two caves, one leading to safety and the other to certain death, guarded by two individuals: one who always tells the truth and one who always lies. The key to solving the puzzle is to ask one guard a specific question that reveals the safe cave regardless of which guard is questioned. The recommended question is, "If I asked the other guard which cave leads to safety, what would he say?" This question effectively navigates the truth-telling and lying nature of the guards, ensuring the correct cave is identified.

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Poirot1
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You must enter one of two caves. One cave leads to certain death, the other to safety. A guard stands at each entrance, one who always tells the truth and one who always lies. You make ask one question to either of the guards. What should you ask?
Not difficult by an means but entertained me when I was younger.
 
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Poirot said:
You must enter one of two caves. One cave leads to certain death, the other to safety. A guard stands at each entrance, one who always tells the truth and one who always lies. You make ask one question to either of the guards. What should you ask?
Not difficult by an means but entertained me when I was younger.

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You ask either guard what the other would say if asked which lead to safety, then take the other.

CB
 
Last edited:
I remember this one... Except when it was told to me, it was TweedleDee and TweedleDum from Alice In Wonderland instead of guards.
 

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