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

Historical Note on Henry Ernest Dudeney: Puzzles and Curious Problems $141$ - The First Boomerang Puzzle
In the words of :
 * 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, who died about the year $120$.