Five Good Questions Podcast

Arthur T. Benjamin is a professor of mathematics at Harvey Mudd College who specializes in combinatorics.  He is known for mental math capabilities and "Mathemagics" performances in front of live audiences.  His mathematical abilities have been highlighted in newspaper and magazine articles, at TED Talks and on The Colbert Report.  He is the author of several books, including The Magic of Math: Solving for x and Figuring out Why.