Question: What's the number of laps for 16 grids?
SQL: SELECT SUM("Laps") FROM "2-13719531-3" WHERE "Grid" = 16.0;

Question: Who was the rider for laps less than 23 with grid greater than 21 that had a time of +1 Lap?
SQL: SELECT "Rider" FROM "2-13719531-3" WHERE "Laps" < 23.0 AND "Grid" > 21.0 AND "Time/Retired" = '+1 Lap';

Question: What's the total grid for someone with a time/retire of +44.831
SQL: SELECT COUNT("Grid") FROM "2-13719531-3" WHERE "Time/Retired" = '+44.831';

Question: What's the smallest grid for Time/Retired of +22.687?
SQL: SELECT MIN("Grid") FROM "2-13719531-3" WHERE "Time/Retired" = '+22.687';