Here are five new lateral thinking puzzles -- play along with us as we try to untangle some perplexing situations using yes-or-no questions. Here are the sources for this week's puzzles. In a few places we've included links to further information -- these contain spoilers, so don't click until you've listened to the episode: Puzzle #1 was contributed by listener Mary McNally. Puzzle #2 is from listeners Tay Moss and John Russell. Puzzle #3 is from Paul Sloane and Des MacHale's 2014 book Remarkable Lateral Thinking Puzzles, plus this article. Puzzle #4 was suggested by an item in Kevin McAleer's 2014 book Dueling: The Cult of Honor in Fin-de-Siècle Germany. Puzzle #5 was devised by Sharon. Here are three corroborating links. You can listen using the player above, download this episode directly, or subscribe on Apple Podcasts or Google Play Music or via the RSS feed at http://feedpress.me/futilitycloset. Please consider becoming a patron of Futility Closet -- you can choose the amount you want to pledge, and we've set up some rewards to help thank you for your support. You can also make a one-time donation on the Support Us page of the Futility Closet website. If you have any questions or comments you can reach us at podcast@futilitycloset.com. Thanks for listening!