6 game periods
4
There are three 20 minute periods in a regulation NHL game.
Three
42
A Basketball game has four quarters.
There are two periods played in a whole game of college basketball. Both periods are 20 minutes long. But with timeouts and fouls called during the game, the game goes on longer.
There are four referees in a baseball game.
There are three 20 minute periods with two 10 minute intermissions between the 1st and 2nd, and 2nd and 3rd periods.
It varies from game to game...
27 outs in a baseball game unless it goes into extra inning.
Three 20-minute periods are in a regulation Hockey game, and a possible 5-minute to 20-minute overtime.