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Home > Logic > Liars and Knights
Ask for help (Posted on 2005-07-05) Difficulty: 1 of 5
You are on a treasure hunt, wondering where the "Truth Treasure" is buried. You have no idea where it is buried, so you go Truth Town (made up of only Liars and Knights) because it is famous for holding the treasure's secret location.

When you enter the city, you see two twins and they know each other's types, but you don't. One twin says "(Exactly) one of us is a Knight..." and the other twin says "...and (exactly) one of us is a Liar." You can only ask one question and only to one person. You only care about where the treasure is kept, and obviously a liar would give you a wrong answer, so what should you do?

No Solution Yet Submitted by Gamer    
Rating: 3.4444 (9 votes)

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No Subject | Comment 2 of 41 |
It would be evident in consonance with the provisions inclusive of the puzzle under reference, that both the twins reply implies the same  type combination, and consequently, both the twins must be liars.
If we were given the choice of two questions, then it may be  possible to elicit the correct location.

However, with the option of only one question, it would not be feasible to get the location of the treasure from the twins.

 

Edited on March 28, 2008, 4:30 am
  Posted by K Sengupta on 2005-07-05 06:25:14

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