sixteen - twelve players and four officials
3
seven
Unfortunately it is Hockey, not Cricket which many people tend to believe seeing the passion India's have for the game.
About 20,00 people.
about 2 to 3 people per game
I'm pretty sure there can be as many substitutions as you want in the game.
there are 4 officials in an NHL game. 2 referees and 2 linesmen
it all depends on how many goals and assists you have during the game or career
It depends on the player's skill level or role on the team.
4 2 refs and 2 linesmen
there are two defenseman, three offenseman and one goalie
there are two referees and two linesmen for a total of 4 on the ice.