Potency of these about 20000 remain mostly in the Black Mesa too' value $800 answer Switzerland round Jeopardy! Show_number 6252 category 2011 NEWS air_date 1990-01-22 question 'From Latin for \hard mother\' value $800 answer \Jungle Fever\ round Jeopardy! Show_number 3139 category WORLD OF SINGERS air_date 1987-02-16.