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Story summary
- Timothy Chow presents a hat-number puzzle with three participants Ade, Binky, and Carl, where one number is the sum of the other two, a recurring feature since 2015 that invites discussion.
- Binky has 3.
- Carl has 1.
- Ade initially does not know his number.
- After Binky states he does not know his number, Ade declares he knows his number.
