AMA Bonus: Replacement Math

What do you get when you add Jay-Z's "Problems" to Three Dog Night's "Loneliest Number"? In this Season 1 bonus round, puzzle guru Art Chung challenges contestants to solve simple arithmetic problems using numbers found in pop culture. Calculus is a lot less scary when it involves your favorite band.  Plus, Jonathan Coulton performs an original and puzzling song about fractals, "Mandelbrot Set."