No, not in golf
Yes, two shot penalty. This is because the OB marker indicates the boundary of the course, you may remove hazard stakes etc, but never OB.
Out of bounds stakes are always white.
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.
IN
This stands for out of bounds. It is an area of the golf course or off the golf course which is not in play. If you hit your ball out of bounds, you cannot play your next shot from there, you must re-hit your shot from the place you originally played from. There is a one shot penalty for hitting out of bounds.
Out of bounds.
Out of bounds is indicated by white stakes.
A Bra
Out of bounds is the strictest rule in golf, and often the harshest. You have to replay the ball from the exact same place you just played that shot from. So if you are on the tee and hit one out of bounds, you tee it up again and you are now playing your third shot off the tee (This includes the one shot penalty). If you are in the fairway and hit it out of bounds, you replay it from as close as possible to where the original was hit from.
no
Of course . The club decides where the boundaries are.