Putting Rules

1: A player incurs the general penalty when he touches his line of putt in which one of the following?

2: In match play, a player lifts his ball on the putting green. Then, he accidentally drops it, striking and moving his opponent's ball. What is the ruling?

3: In a single match, a player is entitled to all of the following EXCEPT:

4: In match play, the penalty for removing grass adhering to a ball is

5: A rub of the green occurs when a ball in motion is accidentally deflected or stopped by any outside agency.