CASE ZERO
Case 282

Who is guilty?

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

Ava: “The guilty person is one of Eli, Nora or Miles.”
Eli: “Nora is guilty.”
Nora: “Nora is innocent.”
Miles: “Neither Ava nor Eli is guilty.”
Zoe: “Neither Ava nor Zoe 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.