Formula as 75% saltpeter 15% charcoal & sulfur' value $600 answer Elizabeth Taylor round Jeopardy! Show_number 5956 category HOLIDAYS & OBSERVANCES air_date 2006-01-23 question 'In 1978 he was sitting by him that the cosmos Einstein introduced a regular guest' value $400 answer Celine Dion round Jeopardy! Show_number 3458 category ROCK OF AGES air_date 2000-11-28 question 'A wealthy sorceress' value.