Question: On the Circuit Zolder who was the winning team?
SQL: SELECT "Winning Team" FROM "1-25213146-2" WHERE "Circuit" = 'Circuit Zolder';

Question: In what circuit was Bruno Spengler the winning driver?
SQL: SELECT "Circuit" FROM "1-25213146-2" WHERE "Winning Driver" = 'Bruno Spengler';

Question: How many Pole Positions were there on 30 March?
SQL: SELECT COUNT("Pole Position") FROM "1-25213146-2" WHERE "Date" = '30 March';

Question: Where was the circuit for round 4?
SQL: SELECT "Circuit" FROM "1-25213146-2" WHERE "Round" = 4.0;

Question: On what date(s) was the winning team Prema Powerteam?
SQL: SELECT "Date" FROM "1-25213146-2" WHERE "Winning Team" = 'Prema Powerteam';