Case 343
The Missing Painting
A framed artwork disappeared from a private hallway.
Rule: exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Morgan
“Alex is innocent.”
Alex
“Neither Morgan nor Avery is guilty.”
Taylor
“Either Morgan or Rowan is guilty.”
Rowan
“Morgan is guilty.”
Avery
“Rowan is guilty.”
Who is guilty?
Solution: Rowan
If Rowan is guilty, Rowan's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.