The amount of plays that exist in an NFL offensive playbook depend on the team, and the current coach's playbook. Some teams have a lot of different plays, but some rely on similar plays throughout a game.
That is a very difficult question to answer due to the fact that if one player has a different assignment on a 'play' it would be considered a different play. Playbooks of the teams in the NFL are usually several hundred pages long. It would be safe to say that there are many hundreds of different plays in football.
Billy Slater plays NFL not AFL
There is no tackle in flag football
Manchester United
An NFL football quarterback who plays for the New England Patriots
The positions in Arena Football are the same in NFL football
Ron Parker plays for the Kansas City Chiefs.
500
An NFL football quarterback who plays for the New England Patriots
Attempt to keep plays centered in the field, to open up passing game.
NFL is an American football abbreviation. "NFL" stands for "National Football League". National because the league is played across the nation; Football because the game played is referred to as "football" (It is known as "football" in America. Many countries refer to it a "soccer".); League because this national game is played with multiple teams in many places at different times, etc. (unapproved definition of "league").
There are no NFL teams that play home games in a different country. There are a couple games every year that are played in different countries though