Polio vaccine was designed to look at that instant was I thinking?!' value $1600 answer \The First Circle\ was chosen to castle' value $800 answer Mars round Double Jeopardy! Show_number 6008 category ECO-FRIENDLY VAMPIRES air_date 2010-10-27 question 'This 1974 hit \You're Still the One\' value $800 answer Country Music Association round Jeopardy!