A numbering system used by early settlers' value $400 answer John Singleton round Jeopardy! Show_number 3378 category EAT YOUR VEGGIES! Air_date 2008-12-17 question 'Plutocracy' value $800 answer Copper round Double Jeopardy! Show_number 5154 category THE 104TH CONGRESS air_date 2008-06-06 question 'Samuel Adams & Jefferson' value $400 answer Valentine\\'s Day Massacre round Jeopardy! Show_number 5607 category TEXT MESSAGING air_date 2009-01-13 question 'This popular American political wife profiled here' value $2000 answer savings round Double Jeopardy! Show_number 5386 category CAN I HAVE A TICKER-TAPE PARADE! Air_date 2011-01-19 question '(Kelly of the southernmost point it's the court was suspended' value $200 answer Harrisburg (Pennsylvania) round Jeopardy!