American players are called 'imports.' Each team is allowed to field 12 players. There is no limit as to how many of the 12 can be imports.
fifty
a cfl field is longer it is 150 yard(with end zones) and nfl is 120 yards with end zones so cfl field is longer
19 players and up to three quarterbacks.
12 per team
12
12
65 yards.
12 on the field per side so 24 total.
At the front of the endzone
CFL fields are 110 yards long without the end zones. With the endzones, they are 150 yards.
About the same as in the NFL.
There were nine teams that were in the CFL at the beginning of the leagues formation.