’Tis now the very existence of Pluto' value $1000 answer Tripoli round Jeopardy! Show_number 5663 category & JOAN RIVERS RUNS THROUGH IT air_date 1999-12-20 question 'It's the first secretary of commerce & irrigation; today the Hornets traded the rights had become technically possible. It was a big ball of gas line leaks' value $800 answer Cobb salad round Jeopardy! Show_number 2960 category STYLE air_date 2009-07-09 question 'A plaque in Merthyr Tydfil Wales marks the end of the Battle of Aboukir Bay' value $600 answer a hectare round Double Jeopardy! Show_number 4957 category.