Henry Ernest Dudeney/Puzzles and Curious Problems/141 - The First Boomerang Puzzle/Historical Note

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Historical Note on Henry Ernest Dudeney: Puzzles and Curious Problems $141$ - The First Boomerang Puzzle

In the words of Henry Ernest Dudeney:

One of the most ancient forms of arithmetical puzzle is that which I call the "Boomerang."
Everybody has been asked at some time or another to "Think of a number,"
and after going through some process of private calculation, to state the result,
when the questioner promptly tells you the number you thought of.
There are hundreds of varieties of the puzzle.
The oldest recorded example appears to be that given in the Arithmetica by Nicomachus, who died about the year $120$.


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