In a land of people who either only tell lies or only tell the truth, you meet Penelope and Kaitlyn. Kaitlyn says, “We’re both total liars!” What does that really mean about Penelope and Kaitlyn?
REVEAL THE ANSWER
Penelope is a truth teller and Kaitlyn is a liar! “We’re both total liars” cannot be true because it would mean a liar is telling the truth. If it cannot be true, Kaitlyn must be a liar, but in order for it to be a lie, Penelope must be a truth teller.