Table: t_1955_vfl_game
Columns: home_team
home_team_score
away_team
away_team_score
venue
crowd
date

Question: When did Geelong play as the home team?
SQL: SELECT "date" FROM t_1955_vfl_game WHERE "home_team" = 'geelong'

Question: When North Melbourne played as the away team, what was the crowd numbers?
SQL: SELECT "crowd" FROM t_1955_vfl_game WHERE "away_team" = 'north melbourne'