The Three Lighthouse Math Problem Visualized

I was playing around on the new Mix.com social media website and came across this click-bait article from MentalFloss: This Math Problem for 8-Year-Olds Left Parents Stumped. The problem, which I’ll repeat below, turned out not the be that complex. I have no idea why it “left parents stumped.” That said, I’m a sucker for math problems, and I wanted to explore the question further.
June 2018 Book Reading List

Time is precious - once again, I only managed to fit in one book in my busy schedule for the month. Hopefully, come August, I’ll have more time, since the last session for the last class in my Master’s program is on July 25th. Of course, my son might be mobile by then - he’ll be four months on the 26th - so he will require more attention.
My Robinhood Stock Picks for June 2018

At the end of last month - the last day, in fact - I signed up for a Robinhood account. I signed up mostly for fun - but also for the free stock that Robinhood is currently offering. I got Chesapeake Energy (CHK), which is worth only about five bucks. However, some people get stocks worth a couple hundred dollars, such as Facebook or Apple.
Unlocking a 2004 Honda Civic Radio and Setting the Clock

A week or so ago, my wife’s car broke down. The pully on the A/C compressor pulley wobbled and seized, so not only did her 2004 Honda Civic have no A/C, it smoked under the hood from the belt rubbing against the belt. So I had some work to do, and in the course of the repair I had to disconnect the negative battery cable because of reasons (and if you must know, it’s because I had to move the alternator out of the way, and in doing so I started sparking things. Safety second, I guess).