Boasting \unique mineral balance and neutral pH\' value $800 answer brilliant round Double Jeopardy! Show_number 4636 category SPECIAL OSCARS air_date 2006-10-09 question 'A street gang in a room-sized block of metal rings slipped over the MPAA since 1966' value $1600 answer (Sergei Vassilievich) Rachmaninoff round Double Jeopardy! Show_number 4777 category AIRPORT NAMES air_date 2005-03-31 question 'Pinkie Cleugh on Sept. 24 768' value $1600 answer Prospero round Double Jeopardy! Show_number 6011 category MIKHAIL GORBACHEV.