Case 025
Who is guilty?
Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Maya: “Owen is guilty.”
Noah: “Neither Lena nor Owen is guilty.”
Lena: “Noah is innocent.”
Owen: “Neither Noah nor Owen is guilty.”
Iris: “None of Noah, Lena or Iris is guilty.”
Random case Solution: Maya 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.