Case 064
The Missing Ledger
A confidential ledger disappeared from the office.
Rule: exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Dakota
“Kai is guilty.”
Jules
“Kai and Logan are both innocent.”
Kai
“Neither Logan nor Finley is guilty.”
Logan
“Finley is innocent.”
Finley
“Jules and Kai are both innocent.”
Who is guilty?
Solution: Dakota
If Dakota is guilty, Dakota's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.