Here's the puzzle of the month from the April 1960 issue of Popular Science [UPDATE: Readers with a better memory than mine have pointed out that I posted this romper la cabeza in 2005.]
Luckily someone told me the answer to this one at the same time as the puzzle. Otherwise –– like the wife of one PS editor –– I might still be working on it:
The census taker, placing one weary foot after another, climbed the steps and rang the bell. “How many people live here?” he asked the person who answered the door.
“Three,” was a prompt answer.
“And their ages?”
The reply startled him: “the product of our ages is 225, while the sum is the same as the house number.”
The census taker looked up to check the number he had already noted on his tally sheet, “Hmm,” he said, “I need to know one more thing: are you the eldest?”
“Why, yes,” the person said. And the census taker, cheered at the novel answers, smiled as he wrote down their ages and walked away.
Puzzle of the Month (PopSci April 1960)
The Cobham catalog, exposed by The Intercept, features countless pages of surveillance gadgets sold to U.S. police to spy on American citizens: tiny black boxes with a big interest in you. In the creepily bland feature lists and nerdy product names is a whisper of a dark future; perhaps darker than anyone can imagine.
This image depicts the most commonly-found stylesheet colors on the web’s top sites—Paul Hebert did an amazing amount of analysis and this is just one of the intriguing visualizations he came up with. Most of these are obvious staples, especially HTML red and blue, though it’s interesting how far the blue “cluster” is from the […]
With the cacophony of an election year ablaze with unparalleled drama being fought on the front lines of Twitter, we find ourselves slowing down and staring at it like a bad accident. The need for escapist relief is perhaps more dire than usual right now. This fall, if it’s drama you crave, but the Hillary […]
Vaping is getting more mainstream by the day, which means there’s been an influx of quality yet affordable vaporizers on the market. We’re particularly excited about the APX Wax Vaporizer Kit, which is an easy-to-use, high-quality vape that works with both dry herbs and waxy concentrates.If you’re a beginner trying to get into vaping, the APX […]
When you’ve had a long day and it’s time to unwind, there’s a lot you can do to relax: drink some tea, take a shower or even read a book. But there’s one thing that’s essential to a comfortable night’s rest—and that’s investing in some really good sheets. Enter Bamboo Bed Sheets. These quality sheets retail for $120, but […]
The Avantree Powerhouse 4 Port Fast USB Charging Station brings high quality, high power, and still keeps your work space or home looking neat and organized. The best part about this charger is its capacity. It comes packing 4 USB charging sockets and a powerful 4.5A/22.5W output.. Its smartport technology means you don’t have to worry about frying your battery, either—it […]