House musician Jonathan Coulton has a laugh while performing on Ask Me Another. Becky Harlan/NPR hide caption

itoggle caption Becky Harlan/NPR

Ophira Eisenberg doesn't need your stinkin' etiquette rules. She makes up her own. Becky Harlan/NPR hide caption

itoggle caption Becky Harlan/NPR

Put your thinking caps on, contestants. Lam Thuy Vo/NPR hide caption

itoggle caption Lam Thuy Vo/NPR

Jonathan Coulton performs live from the Ask Me Another stage at The Bell House in Brooklyn, NY. Lam Thuy Vo/NPR hide caption

itoggle caption Lam Thuy Vo/NPR
iStockphoto.com

Pinball convention-goers play on a bank of Stern machines at the Consumer Electronics Show in Las Vegas in January. The company is no longer the only pinball manufacturer. Julie Jacobson/AP Photo hide caption

itoggle caption Julie Jacobson/AP Photo

Pinball convention-goers play on a bank of Stern machines at the Consumer Electronics Show in Las Vegas in January. The company is no longer the only pinball manufacturer. Julie Jacobson/AP Photo hide caption

itoggle caption Julie Jacobson/AP Photo
John Chaneski