Khan AcademyVerified account

@khanacademy "If I asked the other guard which room the treasure was in, what would he say?" Then I'd go in the other other room.

@khanacademy "What would the other guard say?" Alternative: "Do you feel lucky?" Bad choice: "Can I ask you a question?"

@khanacademy I knew an other version of this problem with two all-knowing owls that guarded the gates of heaven and hell :)

@khanacademy if we're assuming the "truth" guard has the treasure it's easy. Just ask if they know who guards the treasure.

@khanacademy both guards will answer the same to every question except "do you know where the treasure is?"

@khanacademy What would the other guard say if I asked which was the door hides treasure?

@khanacademy otherwise we have to ask the guards what the other would say is the wrong door. Then the truth will be revealed by both.

@khanacademy Ask either guard: "Behind which door would the other guard say the treasure is?" Then pick the door that isn't that one