Question: how many have times of 6
SQL: SELECT COUNT("Fastest lap") FROM "1-13512105-3" WHERE "Rnd" = 6.0;

Question: which brand have drivers who won with the names of Ryan Briscoe and Tomas Scheckter
SQL: SELECT "Winning team" FROM "1-13512105-3" WHERE "Winning driver" = 'Ryan Briscoe' AND "Fastest lap" = 'Tomas Scheckter';

Question: who else along with Scott Dixon and Graham Rahal drove with the most speed
SQL: SELECT "Fastest lap" FROM "1-13512105-3" WHERE "Most laps led" = 'Scott Dixon' AND "Pole position" = 'Graham Rahal';

Question: tell the number of times where Kansas was the location
SQL: SELECT COUNT("Rnd") FROM "1-13512105-3" WHERE "Race" = 'Kansas';