they do if they have a contract
The trainers or coach will give him his salary
Yes. The Patriots have placed Tom brady on the Injured Reserve. He is paid his full salary and that salary still counts against the teams salary cap limit.
There is no such thing as an NHL football player. The NHL is a HOCKEY league.
I don't know if it is possible to find salary lists since the NHL started way back in 1917. However, for modern salary lists I suggest you check a good hockey website like that of the Hockey News, the NHL , or that of the NHL Players Association.
Injured Reserve, It is a classification for injured players that allows a team to replace them on the active roster. Players placed on injured reserve are not allowed to return to play until the next season and they are paid their full salary during their time on IR.
It is 0.500 Million Dollars.