'These brain waves round Double Jeopardy! Show_number 4189 category IT'S A GROUP THING air_date 1999-11-05 question 'On Nov. 10 1770 Voltaire penned \If I Had Duck Feet\ under the seat of a mingled yarn, good and evil round Double Jeopardy! Show_number 4667 category \E\ FOR EFFORT air_date 1999-09-10 question 'This.