Puzzles of the Black Widowers (The Black Widowers #5)

Puzzles of the Black Widowers (The Black Widowers #5)
The fifth of the six books featuring the Black Widowers. It collects twelve stories by Asimov, most reprinted from mystery magazines and a few previously unpublished, together with a general introduction and an afterword following each story by the author. Each story involves the club members' knowledge of trivia.