Early philosophers often engaged in debates concerning the nature of humor, posing each other enigmatic questions beginning with "What's the deal with," and ending with "am I right?" Indulge in classic rhetoric with today's Groupon to Mark Ridley’s Comedy Castle in Royal Oak. Choose between the following options:

• For $15, you get two tickets to a Friday or Saturday night performance between May 27 and August 27 (up to a $36 value)
• For $10, you get two tickets to a Thursday night performance between May 26 and August 25 (a $20 value)

Mark Ridley’s Comedy Castle, a recently remodeled comedy club, has hosted performances by Tim Allen, Jerry Seinfeld, Jon Stewart, Ellen DeGeneres, and countless comic talents handpicked by owner Mark Ridley. Like most divorces, shows are split into three hilarious acts: a new comedian, a local performer, and a national headliner appear every weekend. The comic pronouncements of Jessi Campbell echo in the halls of Comedy Castle from June 2–June 4 and the incisive jokes of KT Tatara cut into audience bellies and surgically remove guffaws from August 11–August 13. Due to the Comedy Castle’s popularity, tickets for the summer must be scheduled by July 16, and guests should arrive early for seats close to the stage.