Banquets of the Black Widowers (The Black Widowers 4)

Each story involves the club members' knowledge of trivia. Nearly every story here is about decoding a riddle, each of which provides a clue based on dying or last words, misunderstood words, forgotten words, or withheld words. A few are based on facts that are, perhaps, not generally known to the public – Asimov was a frequent writer of popular science and his inclination to explain anything and everything for the general public carried over into other fields, such as history and sociology – but all the mysteries play fair with the reader, who is given either enough information to figure out the solution or a satisfying conclusion that is based on previously given facts and personality qualities.