Neck riddle

Hero victorious through unsolvable riddle

The neck riddle is a riddle where the riddler gains something with the help of an unsolvable riddle. Verlyn Flieger defines neck riddles as "questions that are unanswerable except by the asker, who thus saves his neck by the riddle, for the judge or executioner has promised release in exchange for a riddle that cannot be guessed".

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