MY NEXT DOOR NEIGHBOR LIES A LOT. IN FACT, HE ONLY TELLS THE TRUTH ON ONE DAY A WEEK. ONE DAY HE TOLD ME, I DIE ON MONDAYS AND ON TUESDAY. THE NEXT DAY HE SAID TODAY IS EITHER THURSDAY, SATURDAY OR SUNDAY. THE NEXT DAY HE SAID, I LIE ON WEDNESDAYS AND FRIDAYS. ON WHICH DAY OF THE WEEK DOES MY NEIGHBOR TELL THE TRUTH?

• answer is thursday
  he tells truth on only one day so
  let monday.on first day i.e monday he said he lies on mon and tuesday.it can not be possible.
  similarly tuesday also not possible
  wed:let on wed he tells truth.so he said on wed that he lies on mon and tue.the next he should tell lie since only once a week he tells truth.but the next day he said today is either thursay or sat or sunday.so he said truth which is not possible.
  so let it be thursday...on 1st day he said that he lies on mon and tue...next(which must be friday) day he said today is either thu or sat or sunday...so he lied...on sat he said that he lies on wed and friday...so a lie...so the answer is thursday
• 11 years agoHelpfull: Yes(11) No(1)
• tuesday i guess
• 11 years agoHelpfull: Yes(5) No(3)
• day2 he speaks truth
  day3 he lied because he lies except onday but that day he told only he lies on wed & fri
  day 1 he speaks about die .it is not true& not possible
  day2 he speaks truth
  
• 11 years agoHelpfull: Yes(0) No(2)