Tiger Woods is planning a return to golf, possibly as early as March 25, according to reports.

On a par-four hole, half your shots are expected to be putts. Considering the importance of putting, it's not surprising that some golfers have gone to extraordinary lengths to get the perfect putter.

One of the things that makes golf so challenging, and often frustrating, is that greens aren't flat.

Golf was introduced in Scotland about 250 years ago. As you can imagine, quite a few rules of golfing behavior have developed over the years. Many of them are based on a common-sense principle: don't hurt anybody.