CASE ZERO
Case 358

Who is guilty?

Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.

Amira: “The guilty person is one of Jack, Tess or Mae.”
Jack: “The guilty person is either Hugo or Mae.”
Tess: “None of Amira, Jack or Hugo is guilty.”
Hugo: “The guilty person is one of Jack, Hugo or Mae.”
Mae: “Neither Hugo nor Mae is guilty.”
Random case
Solution: Mae is guilty. Testing each possible culprit leaves this as the only assignment where the culprit's statement is false and all four innocent statements are true.