Case 101
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Sofia: “The guilty person is one of Sofia, Max or Cleo.”
Max: “The guilty person is either Sofia or Ezra.”
Lily: “The guilty person is one of Sofia, Max or Lily.”
Ezra: “Neither Sofia nor Ezra is guilty.”
Cleo: “The guilty person is one of Max, Lily or Ezra.”
Random case Solution: Max 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.