The ball must be touched by another player for a goal to be scored. If no other player touches it then no goal is scored and the restart is a goal kick.
A goal may not be scored directly from an indirect free kick. The ball must touch another player before a goal may be scored.
The restart after an offside infraction is an indirect free kick. A goal may not be scored directly from an indirect free kick.
an indirect free kick ... if it goes in the opponents goal directly, the restart of play would be a goal kick
A free kick that is not shot from directly in front of the goal.
An indirect kick is a kick during which you cannot score automatically. To score on an indirect kick, it must touch another player and go into the goal to be counted.
A goal kick is a different kick from a direct free kick or an indirect free kick. Your question appears to ask if a goal may be scored from a goal kick. Yes, it can, but only against the opponents. One cannot score an own-goal directly from a goal kick.
Not unless another player touches it before it enters the goal.
You are not allowed to score from an indirect free kick
The restart for an offside offense is an indirect free kick. Another player must touch it for a goal to be scored during an indirect free kick.
An indirect free kick must be touched by another player before it goes into the net to count as a goal. A direct free kick does not.
A free kick. Depending on the category of the foul, it can be either a direct or an indirect free kick. The difference between the two is that a goal can be scored from a direct free kick (but only against the opponent) whereas a goal cannot be scored from an indirect free kick.
An indirect free kick may be awarded in the penalty area. It is not promoted to a penalty kick. If it is in the goal area, the kick location must be moved away from the goal line to the top of the goal area (6 yards out).