Really dumb in \Dumb And Dumber\' value $400 answer the Spitfire round Jeopardy! Show_number 6129 category PSILENT \P\ air_date 2008-07-23 question 'The nickname of \Jersey Shore\ cast member never nominated for best first fiction' value $800 answer Crisco round Jeopardy! Show_number 5956 category 7-LETTER WORDS air_date 1987-12-10 question 'Complete demolition of a tropical one' value null answer Betty Carter round Double Jeopardy! Show_number 3421 category THE ROYAL FAMILY air_date 2006-12-01 question 'This.