If the 'kick' is intentional, it is an illegal kick penalty. If it is unintentional, it is a fumble.
No. An illegal formation penalty does not stop play. The play is only negated if the defense accepts the penalty after the play is over.
On a kick off, if the ball goes out of bounds it's an illegal procedure, and it's a penalty. Note: Does not apply to punts.
If the 'kick' is intentional, it is an illegal kick penalty. If it is unintentional, it is a fumble.
Technically, yes, it is illegal to advance the runner. The official penalty is called "Helping the Runner." It is rarely enforced, however.
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.
There is no penalty for that
Common football penalties include false start, offsides, holding, pass interference and delay of the game.
No. Tripping by a blocker for the ball carrier or by a defender trying to tackle the ball carrier is illegal and is a 10 yard penalty.
Yes. It is illegal to impede the progress of any player, regardless of whether the player is in possession of the ball, by sticking your leg out and attempting to trip them. The penalty is 10 yards.
Deliberately body slamming an opposing player is considered illegal in the game of Football. It is a 15 yard Unsportsmanlike Conduct Penalty, and the player executing the body slam can be ejected from the game.
There is no evidence that such a penalty exists in any football league currently.