Say player A's ball is sitting on the green, if player B's ball hit's A's ball and A goes in the hole, it must be replaced to the original position. If B's ball goes in, it is classed as holed. This scenario applies on if B hits from off the green. If he is on the green and hits A's ball he receives a two shot penalty.
it doesn't count
no,if you hit the other persons ball and it goes in the hole it does not count.
Hole out is simply finishing a hole of golf, obviously by putting the ball in the hole.
It is admitting that you cannot beat or equal your opponents score, no further strokes will be played on that hole.
putt
A shot out of a bunker into the hole in golf is often referred to as a "sand shot" or "bunker shot." If the ball goes directly from the bunker into the hole, it is sometimes called a "hole-in-one from the bunker," although this is quite rare. Players typically use a sand wedge for this type of shot to help lift the ball out of the sand.
The ball must come to rest at the bottom of the cup for the ball to be deemed as holed. Say you are pitching as your third shot and the ball goes in and comes out, you must play the ball as it lies and you will be putting for four. If for example you pitch it into the hole and it gets lodged between the cup and the flag you can walk up and nudge the pin so the ball goes into the hole, but if you try to pull it out and the ball flicks out you must again play the ball as it lies, the shot was not holed.
When a golf ball hits another ball into the hole during a game, the outcome changes because the ball that was hit into the hole is counted as being holed out by the player who hit the first ball. This can affect the score of the players involved in the game.
15meters
Take it out of the hole and take a one shot penalty and place the ball no closer to the pin and in line with the hole.
ball
You use a club to hit a ball into a hole.