Yes, they have.
If the crosses the goal line (but not into the goal), and last touched an offensive player; it is a goal kick. It is a corner kick if it was last touched by a defending player.
No, if a player comes into contact with the corner post it is a 20m tap to the opposition
No, no NHL player has ever scored a goal in every game of the season.
1984
When attacking a goal. If all of the ball passes over the goal line and it was last touched by a defensive player, and a valid goal was not scored (meaning the ball did not enter the goal mouth), the game must be restarted by use of a "corner kick". The ball is placed in the corner arc on the side of the pitch that the ball went out of play and kicked by an attacking player. A goal may be scored directly from a corner-kick. The defending players must be at least 10 yards from the arc before the play can commence.
It goes for a corner kick on which ever side of the field the ball went out on.
If it does so above the crossbar and the last player to touch it was an attacker, then it's a goal kick. If it does so above the crossbar and the last player to touch it was a defender, then it's a corner kick. If it does so below the crossbar and it came directly from the defender's goal kick, corner kick, kickoff, or throw-in, it will be no-goal and a corner kick for the attackers If it does so below the crossbar and none of the above apply, a goal should be awarded and the restart is a kick-off for the defenders.
A corner kick is awarded any time the ball crosses the goal line after being last touched by a defending player.
No, a goal cannot be scored directly from a throw in. This is the overriding rule from the FIFA Laws of the Game. If the throwing team throws the ball directly into their own goal, no goal is awarded and play is restarted with a corner kick by the thrower's opponents. If the throwing team throws the ball directly into their opponent's goal, no goal is awarded and play is restarted with a goal kick by the thrower's opponents.
No, it must touch another player for a goal to be scored. If thrown into your own goal, it is a corner kick for the opposing team. If thrown into the opponent's goal, it is a goal kick for the opposing team.
yes
It is not possible to score an own-goal directly from a corner kick. It would have to be a very long kick to do so but, if it did happen, the restart would be a corner kick for the opponents.