CREATE TABLE "round_8" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: Who was the away team when the VFL played at MCG?
SQL: SELECT "away_team" FROM "round_8" WHERE "venue"='mcg';

Question: What was the crowd when the VFL played MCG?
SQL: SELECT MIN("crowd") FROM "round_8" WHERE "venue"='mcg';

Question: What was the crowd when Melbourne was the home team?
SQL: SELECT AVG("crowd") FROM "round_8" WHERE "home_team"='melbourne';