CREATE TABLE "grand_prix_motorcycle_racing_world_champ" (
  "country" text,
  "moto_gp_500cc" real,
  "350cc" real,
  "moto2_250cc" real,
  "moto3_125cc" real,
  "80cc_50cc" real,
  "total" real
);

Question: how many total number of moto2/250cc when country is united states
SQL: SELECT COUNT("moto2_250cc") FROM "grand_prix_motorcycle_racing_world_champ" WHERE "country"='United States';

Question: how many minimum 350cc has
SQL: SELECT MIN("350cc") FROM "grand_prix_motorcycle_racing_world_champ";

Question: how many country has moto3/125cc with 15
SQL: SELECT "country" FROM "grand_prix_motorcycle_racing_world_champ" WHERE "moto3_125cc"=15;