Here's a puzzle from Martin Gardner's Mathematical Games column, which ran for many years in Scientific American. I found it in his anthology, My Best Mathematical and Logic Puzzles, which is only $(removed) on Amazon.
Imagine that you have three boxes, one containing two black marbles, one containing two white marbles, and the third, one black marble and one white marble. The boxes were labeled for their contents – BB, BW, WW – but someone switched the labels so that every box is now incorrectly labeled. You are allowed to take one marble at a time out of any box, without looking inside, and by this process of sampling you are to determine the contents of all three boxes. What is the smallest number of drawings needed to do this?
Martin Raynsford makes beautiful and intricate wooden puzzles with space-filling fractal curves and is kickstartering a set of four. The pattern is a single line that crosses all of the two dimensional space without ever repeating. The puzzles follow these simple rules to break the line into multiple pieces that are almost identical but are […]
Here are three two lateral thinking puzzles that were new to me. They’re from the book, Lateral Thinking Puzzles (1991), by Paul Sloane. Death in the Field A man is lying dead in the field. Next to him is an unopened package. There is no other creature in the field. How did he die? Death in Rome […]
One of my favorite puzzle books as a kid was Perplexing Puzzles and Tantalizing Teasers, by Martin Gardner. It had fun “real life” type problems (how can you drive an 11-foot-9 truck under a bridge with 11-foot-8 clearance?) and it introduced me to palindromes (“Straw? No, too stupid a fad. I put soot on warts.”) […]
If you’re a Mac user, you thrive on simplicity. Everything in its place and a place for everything. Unsurprisingly, there’s a ton of great organizational apps out there for Mac, and now someone’s had the great idea to bundle them all together. Whether you’re running a demanding business or just getting through the day to […]
Seems like drones are doing a lot of jobs these days, from reconnaissance to delivery. Now, we can add “keeping the Death Star safe” to that list. Whether you’re a drone enthusiast or a Star Wars fan, these Star Wars Propel Drones are undeniably the coolest toy around. Yes, that’s a fully functional drone replica […]
It’s spring clearance time for the Boing Boing Store, when some of the best deals from the holidays return even cheaper than before. From top-rated apps to educational software to the cutest record player of all time, they’re all back with a little extra incentive. Shop your heart out before tax season wraps up! Use […]