sixteen - twelve players and four officials
during a nhl game there are 4
Four
There are twelve players on the ice at once during a hockey game. There are six players per side, including the goaltender.
3
seven
About 20,00 people.
about 2 to 3 people per game
Unfortunately it is Hockey, not Cricket which many people tend to believe seeing the passion India's have for the game.
I'm pretty sure there can be as many substitutions as you want in the game.
During the 2009-2010 season, the average is 20,977 fans per home game.
There are three periods in a hockey game.
there are 4 officials in an NHL game. 2 referees and 2 linesmen