"One of them always tells the truth...and one of them always makes you want to shoot yourself. If you're a modern game designer, you must be completely sadistic to put this in your title circa 2014, because even parodying this thing is now something of a cliche...From Labyrinth to the Doctor Who episode "Pyramids of Mars," where even Tom Baker seemed like he couldn't wait to get it over with, this thing has bored and frustrated generations. Because the answer is always the same, these days this puzzle is more of a secret handshake between the nerds that make these games and the nerds that play them than a real challenge for either."
—Topless Robot, "8 Cliche Puzzles That Are In Every Goddamn Adventure Game"
King of Hearts: All the cases take place in a land far, far away — a very strange land inhabited exclusively by knights who always tell the truth, and knaves who always lie—
Alice: Oh, I know those puzzles!
King: Now, I declare you should never say you know those puzzles until you have heard what the puzzles are! There are countless puzzles about liars and truth-tellers, child, and the odds are a million to one you don't know these puzzles! You remind me of those children who, when they see a magician take out a pack of cards, about to entertain them with some conjuring tricks, say "I know that trick!" Why, there are countless tricks which can be done with a pack of cards — just as there are countless puzzles that can be told about knights who always tell the truth and knaves who always lie.
Alice: Oh, I know those puzzles!
King: Now, I declare you should never say you know those puzzles until you have heard what the puzzles are! There are countless puzzles about liars and truth-tellers, child, and the odds are a million to one you don't know these puzzles! You remind me of those children who, when they see a magician take out a pack of cards, about to entertain them with some conjuring tricks, say "I know that trick!" Why, there are countless tricks which can be done with a pack of cards — just as there are countless puzzles that can be told about knights who always tell the truth and knaves who always lie.
— Raymond Smullyan's Alice In Puzzle Land
Blue Guardian: Halt, unidentified adventurers!
Orange Guardian: We are the guardians of this sanctuary! One of us tells only truths. The other, only lies.
Rick: (to the Orange Guardian) You ever fuck this guy's wife?
Orange Guardian: Yes. (beat) Well, how about that. He guessed right.
Blue Guardian: (starts a fight with the other) I forgive you!
Orange Guardian: We are the guardians of this sanctuary! One of us tells only truths. The other, only lies.
Rick: (to the Orange Guardian) You ever fuck this guy's wife?
Orange Guardian: Yes. (beat) Well, how about that. He guessed right.
Blue Guardian: (starts a fight with the other) I forgive you!
