You can call those penalty posts. You kick the ball any time and if you manage to pass the ball between the posts, or even above the post -- you score half a goal, aka 3 points. This one is called "Field goal".
But obviously everyone tries to make a touch down to score 6 points and only reverts to field goal when they can't make it in time.
Around 30 to 40. Generally speaking.
These players are preventing the opposite side's player from reaching the ball. That's it. The secret.
Don't know. But at least they don't play wearing shorts, which is the dress for European football. That should be a plus side.
In next post, inshaAllah :-) Rules of the game.