Here a list of some ways to celebrate National Puzzle Day.
(1) There is a web site you can visit for the National Puzzle Museum , they are building a real one but last I know it was not finished. (puzzlebuffs.com/museum.htm is the link to the site.
(2) Visit this place The Mystery Dinner Theaters
In Tucson, Ariz., one dinner-theater group performs a lively musical called, "Murder at Greystone Manor" and throughout the exquisite three-course meal, entertained guests must figure out who the murderer is. If you can't make the trip, you can gather a group of friends at your home, dress up in elegant attire, spread pretend weapons around the house and play characters like a professor, a duchess and a doctor -- all of whom are suspects when a murder is portrayed. (Only the murderer himself and an impartial moderator will know the answer from the start of the game.)