Over the course of his long career Phil Mickelson has made about 62 holes in one. He has also won 42 (as of August 2014) championships.
Half a hole is still a hole, so the answer is five!
Art Wall Jr. had 44 hole in ones in PGA Play.
He had 17 hole in ones.
Arnie had 16 hole in ones in offical tournaments but he also had a few more that were not during tournaments.Believe his total is 18 or 19 holes in one,
Not a single one - but possibly many small ones.
2 main ones and 1 smaller one
34. And, with the exception of his putter, he hit a hole-in-one with every club in his bag.
That depends on which hole. Shorter holes will have more common hole in ones than long ones. In general, still very rare.