Case 353
The Cut Cable
A network cable was cut in a restricted room.
Rule: exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Lane
“Either Finley or Noah is guilty.”
Kendall
“Neither Sam nor Finley is guilty.”
Sam
“Lane and Kendall are both innocent.”
Finley
“Either Kendall or Noah is guilty.”
Noah
“Sam is guilty.”
Who is guilty?
Solution: Noah
If Noah is guilty, Noah's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.