One Thousand Ways to Make Money by Page Fox

834. WORD PUZZLE.--A puzzle to some minds will be still more effective.

Many will be disinclined to use their brains to work it out, but those who do will remember it, and that after all is the merit of an advertisement. A puzzle which may be patented and sold to the advertiser promises much greater profit. See the “Chinese-Get-Off-the-Earth Puzzle.” A puzzle of this kind is commonly sold exclusively to one firm, and ought to bring quite a sum of money to the inventor.