 One of his stories in 1926 included a notorious mathematical puzzle known as The monkey and the coconuts which provoked an outpouring of 2000 letters to the Post asking for a solution to the problem.He published 135 short stories, 35 serials, and 7 articles for the "Post" during a period of 24 years.After the "Post" took him, other magazines began eagerly seeking Williams to submit his fiction to their magazines.