According to referee Ed Hochuli who is quoted in the article that you can read at the 'Touchdown or No Touchdown' link below, a player who crosses out of bounds is awarded a touchdown if a part of his body touches in the end zone, or the pylon, after the ball crosses the 'imaginary' goal line outside the pylons. I interpret the question to ask if a player lands completely out of bounds but the ball crosses the 'imaginary' goal line outside the pylon, is it a touchdown? The way I understand what I read, the answer is no since no part of the player touched inbounds. Click on the 'Touchdown or No Touchdown' link to read the article and weigh in with your opinions. If I'm understanding your question right, you're asking about the hypothetical goal line that "travels around the world" indefinitely out of bounds. The NFL just changed this rule for the 2008 season, so that the extended goal line no longer exists. The player must now break the plane of the goal line within the field of play, or press the ball against the corner pylon, for the touchdown to count.
Kick off out of bounds, 20 yard penalty, ball goes to the 40
yes
If the player fails to cross the ball where ever the marker is before he physically steps out of bounds then it is not a first down. Although I'm not certain, I think the ball has to cross the marker in bounds as well.
yes
You cannot catch a punt while out of bounds in the NFL.
A fumble is down when the recovering player is down or when the ball goes out of bounds...so yes, if the ball is fumbled forward and recovered by the offense, or goes out of bounds, past the first down marker, it is a first down. The exception is on fourth down. In the NFL, only the player who fumbled the ball can advance it on fourth down.
If a receiver is knocked out of bounds by a defensive player and the official believes the receiver would have come down in bounds with both feet had he not been contacted by the defender, then it's ruled a completed pass. ---- This rule has been changed for the 2008 season. There is no longer a 'force out' rule in the NFL.
Yes, an NFL player needs a lot of practice to play.
NFL: Only if he is out of bounds. However, a player can proclaim himself down to an official, even if the player isn't touched. The official will then consider the ball dead and end the play. High School and college: Yes, it is down, play is whistled dead.
No, whether in Basketball or Football, a player may not step out of bounds and receive the ball. However, once another player touches the ball, other than the one currently holding the ball, that player may receive the ball.
NFL player Will Rackley played for Lehigh.
NFL player Will Svitek played for Stanford.