Question: What is the highest grid for aprilia vehicles, laps over 5, and a retirement finish?
SQL: SELECT MAX("Grid") FROM "2-16194487-2" WHERE "Manufacturer" = 'aprilia' AND "Time" = 'retirement' AND "Laps" > 5.0;

Question: What is the average laps completed by riders with times of +2:11.524?
SQL: SELECT AVG("Laps") FROM "2-16194487-2" WHERE "Time" = '+2:11.524';

Question: Which rider has a time of +2:11.524?
SQL: SELECT "Rider" FROM "2-16194487-2" WHERE "Time" = '+2:11.524';

Question: What is the average grid for vehicles manufactured by aprilia and having run more than 16 laps?
SQL: SELECT AVG("Grid") FROM "2-16194487-2" WHERE "Manufacturer" = 'aprilia' AND "Laps" > 16.0;