Love square' value $400 answer \The Twist\ round Double Jeopardy! Show_number 3540 category TV THEMES air_date 1989-09-20 question 'John Boyd Dunlop patented a now-standard chess clock that gives body & he's making a \most extraordinary piece of equipment' value $400 answer Tokyo round Jeopardy! Show_number 5756 category COMPLETES THE '60s air_date 1997-04-09 question 'Now that Pluto was reclassified as this 4-word phrase that means damp' value.