Case 050
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Ava: “Neither Eli nor Zoe is guilty.”
Eli: “The guilty person is one of Ava, Nora or Miles.”
Nora: “Neither Nora nor Miles is guilty.”
Miles: “None of Eli, Miles or Zoe is guilty.”
Zoe: “Neither Ava nor Miles is guilty.”
Random case Solution: Nora 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.