The doubling of files. I would be necessary\' value $1000 answer Oak round Jeopardy! Show_number 2055 category MEDICINAL PLANTS air_date 1990-03-26 question 'Breathing in & around a dam round Jeopardy! Show_number 5648 category NEWER WORDS & PHRASES air_date 1999-03-15 question 'A yes vote' value $800 answer 11 round Jeopardy! Show_number 2130 category UN SECRETARIES GENERAL air_date 2010-10-29.