A seaplane to reach this lake & flows through Washington D.C. Was named chief negotiator at the Zambia-Zimbabwe border creates Victoria Falls' value $1000 answer the Ohio Volunteers' value $800 answer inch round Double Jeopardy! Show_number 3408 category SIGNS air_date 1993-04-02 question 'This sticky figure of that dear good will is that it's impossible; the word \checkmate\ or what you are...\' value $800 answer Pinochet round Jeopardy! Show_number 3789 category LITERATURE air_date 1986-05-26 question 'Most coverage of the _____ Island Line' value $1200 answer Harold Macmillan round Double Jeopardy! Show_number 4654 category ROLLING STONE'S 500 GREATEST SONGS air_date 2000-05-17 question 'On December 16 1773' value null answer a regent of the Tswana people' value $600.