The answers and explanations for last weekend's PM Puzzler are now http:// https://totalprojectcontrol.wordpress.com/2015/05/27/274/ [1]up at the Total Project Control blog site.
It was not a simple exercise, but a total of 241 readers read the article over the four days. To me, that's encouraging, and means that project management folks are interested in more than just the simplest of information and techniques. I think I'll keep doing this.
Fraternally in project management,
Steve the Bajan