Case 308
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.
Blake
“Either Finley or Kendall is guilty.”
Taylor
“Blake is innocent.”
Quinn
“Taylor is innocent.”
Finley
“Either Blake or Kendall is guilty.”
Kendall
“Quinn is guilty.”
Who is guilty?
Solution: Kendall
If Kendall is guilty, Kendall's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.