CASE ZERO
Case 017

Who is guilty?

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

Maya: “None of Maya, Noah or Owen is guilty.”
Noah: “Maya is guilty.”
Lena: “Neither Lena nor Owen is guilty.”
Owen: “Neither Owen nor Iris is guilty.”
Iris: “Owen is innocent.”
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.