Logic Teaser

by TD 45 Replies latest social humour

  • John Doe
    John Doe

    Is the third one calling number one a liar or number two a liar?

  • SixofNine
    SixofNine

    Villager #3 seems to be confirming that #2 translated accurately

    soooo... only #1 is the liar?

  • TD
    TD

    JD:

    Villager #3 is speaking about villager #1

  • Farkel
    Farkel

    Got it! (Revised)

    One liar.

    #1 HAS to say he's not a liar, whether he's a liar or not.

    #2 is telling the truth because he said #1 DENIES being a liar, and #1 has to deny it.

    #3 says #1 is a liar. If #1 is a liar then #3 is is telling the truth.

    If #1 is not a liar, then #3 is a liar.

    Therefore, TWO of them are telling the truth under all possibilities that I see. Either #2 and #3, or #2 and #1.

    #2 is telling the truth, period. #3 contradicts #2. If #3 is right, #1 is a liar. If #3 is a liar, #1 tells the truth: one liar only.

    My head hurts.

    Farkel

  • JWoods
    JWoods

    Consult Godel, Escher, Bach by Douglas R. Hofstadter.

    This is a conundrum of the Godel Incompleteness Theory. (all complex formal systems can express functions that are unprovable or nonsensical)

    As per the traveler to the island of Crete. A Cretin told him of their culture: "All Cretins always lie".

  • SixofNine
    SixofNine
    Therefore, #2 is a liar under all possibilities, because he said #1 DENIES being a liar, and #1 cannot do that.

    If #1 was a truthteller, then #1 has to deny being a liar, right?

    Edited: Never mind, I see it's changed.

  • SixofNine
    SixofNine
    #3 contradicts #2.

    How so? #3 seems to confirm #2, unless I've missed something.

  • bluecanary
    bluecanary

    #3 is the only one telling the truth.

  • Elsewhere
    Elsewhere

    Shoot them all and let gawd sort them out.

  • jeanniebeanz
    jeanniebeanz

    I prefer Elsie's approach... lol

    Good one though, I could not even come close to figuring it out, so went for a latte...

    J

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