You could win a game by corners if you either ;
1984
Yes. You can score from anywhere on the field at any time except from a throw-in or an indirect free kick. Also, you cannot score an own-goal directly from a kick-off, goal kick, corner kick, free kick, or penalty kick.
Yes. A player may score directly from a kickoff, goal kick, corner kick, direct free kick, or dropped ball. A player may not score directly from an indirect free kick or throw-in.
Yes a goalkeeper can kick the ball and score more then one goal into the other net. And he can score from corner kicks as well.
To score a direct goal from a corner kick is very very rare, but it can be headed more easily.
You try to score goals, they have positions, if it goes out from the side its a throw in, if it goes out behind the goals and the defense did it, its a corner kick, and if the offense did it then it's a goal kick.
Directly from a goal kick, corner kick, or throw-in.
A goal may be scored directly from a corner kick.
There is no such thing as a "line-kick" in soccer. However, a goal may be scored directly from any kick except for an indirect free kick. In that case, the kick may only score after the ball touches another player after the kick and before entering the goal.
A goal may be a scored directly from a goal keeper punt.
(if your choosing) pass the ball to another player on your team, and kick it in the opposite teams goal (the goal where you need to score). or kick the ball in yourself.
It is neither direct nor indirect. That said, a goal cannot be scored directly from a throw-in. The restart would be the same as if the score was directly from an indirect free kick. If the ball enters the opponent's goal then it's a goal kick for the opponents. If the ball enters the thrower's goal, then it's a corner kick for the opponents.