Mind Stretcher Books

(Answer logic: Each term is double the previous term, minus 1. So: 2×2−1=3, 3×2−1=5, 5×2−1=9, 9×2−1=17, 17×2−1=33. The attacker could be linked to “33” — a room number, age, or code.)

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Detective Miles found a single slip of paper at a crime scene. On it was written: (Answer logic: Each term is double the previous