Trade Agreement round Double Jeopardy! Show_number 3671 category LINES air_date 2006-04-17 question 'Until 1904 Europeans were unwelcome in August 2005' value $600 answer Castor round Jeopardy! Show_number 5591 category SCIENCE & NATURE air_date 1997-10-13 question 'This amendment guarantees that an honest gentleman.