Question: How many Sets did gary muller have?
SQL: SELECT COUNT("Sets") FROM "2-1612222-1" WHERE "Player" = 'gary muller';

Question: What Player in 2005 Wimbledon had less than 5 Sets?
SQL: SELECT "Player" FROM "2-1612222-1" WHERE "Sets" < 5.0 AND "Event" = '2005 Wimbledon';

Question: At the 2001 Davis Cup, what Opponent had less than 50 Aces?
SQL: SELECT "Opponent" FROM "2-1612222-1" WHERE "Aces" < 50.0 AND "Event" = '2001 Davis Cup';