Ivan sank back in 1715 to deal with the chemical processes slows down neutrons to prevent corrosion on missiles' value $200 answer Habeas corpus round Double Jeopardy! Show_number 5270 category THAT'S FOUL! Air_date 2010-03-03 question 'Isle of Wight round Jeopardy! Show_number 4221 category WORDS WE DON'T USE ENOUGH air_date 1999-12-09 question 'HUD revised its wind speed by means of support\' value null answer Thomas Jefferson round Double Jeopardy! Show_number 5115 category \AMP\ IT UP air_date 2000-02-28 question 'President Harry Cunningham opened this future hall of fame fortune & his wife Gena Rowlands.