After comparing the benefits of puzzle-solving with the benefits of playing the piano, I found there are four benefits common to both activities.  They are increases in INTELLECT, COGNITIVE ABILITY, CALMNESS, and HEALTH.  So why not add a daily crossword puzzle to my website?  But unlike some crosswords, which give one the feeling that one needs to be a contestant on a well-known quiz show to be able to solve it, these daily crosswords are more palatable.  Enjoy---