Four inhabitants N, O, P and Q of Realmazure are busy in a conversation, when a visitor from a neighboring planet stops by and asks each of them their identity. They say:
Inhabitant N
- I am a Knight.
- P is a Knight.
- P’s second statement is true.
- Q’s second statement is true.
- N’s first statement is true.
- P is a Knight.
- N is a Pretender.
- O’s third statement is false.
- O is a Pretender.
- P is a Prevaricator.
- O’s third statement is true.
- O is a Pretender.