I think it is loss of down or a 10 yard penalty.
According to the NFL rulebook, illegal formations, motions and substitutions all carry a five-yard penalty.
Yes, but very few such as too many men on the field and illegal forward pass.
Common football penalties include false start, offsides, holding, pass interference and delay of the game.
Same as in all levels of football: 5 yards for illegal substitution. The exception would be if 12 people actually participate in the play. That's illegal participation, which is 15 yards.
It depends what sport you are talking about..
Yes, a horse collar tackle is considered a penalty in the NFL.
In the NFL, the penalty for hands to the face is a 15-yard penalty and can result in a player being ejected from the game for repeated infractions.
The penalty for making an illegal use of hands signal in football is a 5-yard penalty and loss of down.
The penalty for an Illegal Forward pass is a five yard spot foul and loss of down. If an Illegal forward pass is intercepted, the penalty would be declined. There would be no enforcement of the penalty.
Yes, the horse collar tackle penalty is still enforced in the NFL.
There are no points for penalties in an NFL game.
No, because an illegal shift doesn't happen until the ball is snapped. If every player is shifting, it is legal as long as they pause 2 seconds for high school, 1 second for NCAA/NFL before the snap. So it is a live ball penalty.