Will Shortz eat your heart out! Andrew & Polly talk to some real puzzlemasters - Devin, Westley, Bela, Lane & Lucy - about what it feels like to be puzzled. Matthew Inabinett, paleontologist-in-training at the Beneski Museum of Natural History, helps us piece together how dinosaurs, birds and continental drift are all part of the same puzzle.  Plus, a new song about when you don't the word for that thing.  You know, the thing.