An adventurer found a locked treasure chest in a dungeon.
He tracked down three brothers (each either a Liar or a Knight) one of whom has the key to open the chest.
Each made a statement:
A: I have the key to the chest.
B: I don't have the key to the chest.
C: B Doesn't have the key.
The adventurer knows that at least one of the three is a Liar, and at least one  a Knight. Who has the key?
B and C made the same statement so they must have the same inclination (both liars or both KNights)
the puzzle specifies that there is at least one of each type so A must be the opposite
If A were telling the truth then all the statements would be true so A must be a liar therefore B and C must be Knights
Since a is a liar he does not have the key
since B is a knight he does not have the key
so C has the key
Edited on October 3, 2003, 12:05 pm

Posted by FatBoy
on 20031003 12:02:11 