You are in a dungeon with five doors. In the dungeon there are two dungeon keepers, who are both either a liar or a knight. You know there is one liar and one knight. One door leads out of the dungeon, the other to certain death.

The keepers then tell you the following information:
Keeper A: If you asked me what door to take, there is no chance I would say E. If you asked the other keeper what door to take, he might say B.

Keeper B: If you asked me what door to take, there is no chance I would say C. If you asked the other keeper what door to take, he might say A.

Which door is the correct one?

The Liar is telling you which door they will tell, which is not the exit, and a door that the Knight would not offer as your exit.

The Knight is telling you which door is not an exit and is picking a door that the Liar could offer as the exit.

With this, none of the answers given could be your exit regardless of who is the Liar or Knight.
Door D leads you out.

Posted by Hans on 2003-08-18 17:07:49