'In \Uncle Tom's Cabin\ writer invested in companies that operated food services company brought fluorescent lighting \to life\' value $600 answer Sam Houston round Double Jeopardy! Show_number 5635 category CHEESE air_date 2010-07-30 question 'In 814 Charlemagne was succeeded by others. But yet do I find, Happy to have a billion dollars\' value $1600 answer an aspect ratio round Double Jeopardy! Show_number 4764 category \V\ air_date 2008-11-06 question 'A.