Couple Questions

[Patsfan2431]

Few Scenarios i'd like to get clear

All under Federation rules

Play #1

A20 runs the ball on a sweep (they are on their own 40). Approx. 10 yards down field, B35 grabs his face mask briefly for a 5 yard flag (which the official throws), A20 breaks through B35's attempt at making the tackle and fumbles the ball (50 yard line). B35 grabs the loose ball and his tackled (A's 45 yard line). Call?

#2

If you have a 15 yd penalty (say, a block in the back) on B while A is at the B 20 yard line (where the play ends), do you go half the distance or go 15 yards. If you go half the distance, what yardline would A need to be at to go the full 15?

#3

You have a missed field goal by A at B's 15yd line. Does B retain possesion at the previous spot or does the ball get spotted at another spot?

#4

This is more of a gray area. You are working as head linesman. There is a sweep to the other sideline. As you are trailing on the other end of the field, you see a block in the back. Now, the field judge did not have a flag and you see a clear violation. Do you throw the flag? If so, how do you sell the call since you are "out of position" from the play based on that the LJ being there. If not, why should the official let it go?

Thanks guys! I appreciate It!