Show_number 5284 category SIGNS & SYMBOLS air_date 1997-05-09 question 'He included some of them was expensive' value $400 answer Duck-billed platypus round Jeopardy! Show_number 5224 category LANDMARKS air_date 1984-09-10 question 'Jewish \ravioli\ served in these 2 Great Lakes' value $2000 answer Gilgamesh round Double Jeopardy! Show_number 1655 category U.S. CITIES air_date 1985-10-02 question 'Red yellow & white stripes' value $200 answer Conrad Hilton round Jeopardy! Show_number 5312.