CREATE TABLE "round_18" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What is the size of the crowd at the game where the home team scored 10.8 (68)?
SQL: SELECT AVG("crowd") FROM "round_18" WHERE "home_team_score"='10.8 (68)';

Question: What is the name of the away team that played Melbourne?
SQL: SELECT "away_team" FROM "round_18" WHERE "home_team"='melbourne';

Question: What date was the game played at Punt Road Oval?
SQL: SELECT "date" FROM "round_18" WHERE "venue"='punt road oval';

Question: What is the name of the home team that played against Hawthorn?
SQL: SELECT "home_team" FROM "round_18" WHERE "away_team"='hawthorn';

Question: What is the home team score that played at Kardinia Park?
SQL: SELECT "home_team_score" FROM "round_18" WHERE "venue"='kardinia park';