Two twins have certain peculiar characteristics. One of them always lies on Monday, Wednesday, and Friday. The other always lies on Tuesdays, Thursdays and Saturdays. On the other days they tell the truth. You are given a conversation.

Person A-- today is Sunday my name is Anil
Person B -- today is Tuesday, my name is Bill
what day is today?

• Today is Tuesday.
  
  Since {Monday, Wednesday,Friday} and {Tuesday, Thursday, Saturday} don't intersect, always one is lying and the other telling the truth except for Sunday when both are telling the truth.
  
  Suppose today is in fact Sunday so A is telling the truth but B isn't. Contradiction (As on Sunday both tell the truth).
  
  So today can't be Sunday therefore it is Tuesday.
• 11 years agoHelpfull: Yes(40) No(3)
• tuesday
• 13 years agoHelpfull: Yes(10) No(3)
• If it were Sunday, then B wouldn't have said Tuesday.
  So it is not Sunday, A is lying.
  Which means B is telling the truth.
• 11 years agoHelpfull: Yes(10) No(0)
• it is sunday as sundya no one lies . so anyone who tell this is sunday he must be right
• 13 years agoHelpfull: Yes(8) No(13)
• explain hte solution.....if the peson lies on tuesday than how can it be tuesday.
• 13 years agoHelpfull: Yes(7) No(0)
• Assume Today is Sunday. Then Both Person A and Person B are telling Truth. But it means Today is Sunday and Tuesday which can't be true. So Today is not Sunday.
  But Person A is telling Today is Sunday. So Person A is lying. If person A is lying That implies Person B is telling Truth according to Question.
  So Today is Tuesday.
• 11 years agoHelpfull: Yes(4) No(0)
• tuesday / any other day but not sunday
  
  as no one lies on sunday....had it been sunday then B wud not hav said it's tuesday
• 12 years agoHelpfull: Yes(3) No(0)
• Today is thursday, because it is asking today's day ie your solving day of this puzzle... :)
• 7 years agoHelpfull: Yes(1) No(0)
• the answer is sunday. because sunday both A and B says truth
• 9 years agoHelpfull: Yes(0) No(3)
• today is tuesday
• 6 years agoHelpfull: Yes(0) No(0)
• Sunday because it is given in statement
• 6 years agoHelpfull: Yes(0) No(0)
• Sunday
  Sunday is out of list.
• 5 years agoHelpfull: Yes(0) No(0)