Case 166
The Empty Safe
A small office safe was found empty in the morning.
Rule: exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Avery
“Neither Quinn nor Rowan is guilty.”
Quinn
“Avery and Finley are both innocent.”
Rowan
“Either Avery or Jordan is guilty.”
Jordan
“Either Avery or Rowan is guilty.”
Finley
“Avery and Rowan are both innocent.”
Who is guilty?
Solution: Jordan
If Jordan is guilty, Jordan's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.