Can You Solve Elon Musk's Favorite Brain Teaser?

Joe Scarnici, Getty Images/Best Events
Joe Scarnici, Getty Images/Best Events

"You're standing on the surface of the Earth. You walk one mile south, one mile west, and one mile north. You end up exactly where you started. Where are you?" This is the question that entrepreneur Elon Musk reportedly likes to ask candidates who interview for positions at SpaceX. The brainteaser was divulged in a 2015 biography about Musk, but it was recently revived when CNBC took to the streets of New York City to see if random passersby could get it right.

Before we reveal the answer below, a bit of background first. Big companies—especially ones in the technology industry—have been known to ask tricky interview questions that read like riddles. In the past, Google interviewees have been asked, "How many people are using Facebook in San Francisco at 2:30 p.m. on a Friday?" Hewlett-Packard has opted for the question, "If Germans were the tallest people in the world, how would you prove it?" And you've probably heard some variation of a question related to golf or tennis balls.

The purpose of these questions it not to make you feel dumb, but to see how you process information and solve complex problems. Interviewers are checking your analytical skills, and whether or not you arrive at the correct answer is almost secondary. But for the fun of it, keep reading to see if you nailed Musk's interview question. Are you ready? The answer is the North Pole. If you follow the directions in the question, you'd make a triangular path and end up back where you started.

There's another possible answer, but it's a little more complicated. The place in question is a circle with a one-mile circumference around the South Pole, and you'd start walking one mile north of it. "You'll walk one mile south to reach this circle, trace that mile-long circle's path, and return one mile north to your starting point," CNBC notes. (If you're having trouble visualizing it, check out this video from Business Insider, which offers a handy illustration.)

If you didn't get it right, don't feel too bad. Most of the New Yorkers who were polled didn't know the answer, either. Fortunately, this question probably won't come up in your average interview.

[h/t CNBC]

Stranger Things Fans Can Now Buy a 6-Foot-Tall Demogorgon Sprinkler

BigMouth Inc., Amazon
BigMouth Inc., Amazon

Some fans watch a show and then talk about it. Others create art inspired by it. Others develop far-out theories. But sometimes, fans go even further than that—like when pool accessory company BigMouth Inc. revealed its massive Stranger Things-inspired, inflatable Demogorgon sprinkler, which is now available for any fan to purchase.

The sprinkler, the perfect gift for those wishing to combine their love of sci-fi monstrosities and thorough lawn irrigation, stands 6 feet tall and can be connected to any standard hose, allowing it to spurt water from its horrifying open face, according to House Beautiful. And for fans thinking it can only be found in the far corners of the internet, fear not: the sprinkler is available now at Target and on Amazon.

If you want a less flashy way to show off your Stranger Things fandom this summer, BigMouth Inc. also sells a plethora of other novelty items based on the show, like an Upside Down-themed pool tube, Scoops Ahoy floating cupholders, and a float based on one of Eleven’s trademark waffles. (See all the options on Amazon here.)

This marks the latest in a series of collaborations for the hugely successful Netflix series. Prior to its release, Stranger Things teamed with both H&M and Nike to release clothing and shoes inspired by the series. It also collaborated with Coca-Cola to produce a limited edition collection of New Coke cans inspired by a moment in the third season.

We’re glad there’s a plethora of Stranger Things merchandise available, even the terrifying Demogorgon sprinkler—it sounds just ridiculous enough to buy right away. It's available at Target or Amazon for $100.

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The World’s Steepest Street Is in Harlech, Wales

Tonktiti/iStock via Getty Images
Tonktiti/iStock via Getty Images

It wasn’t by chance that Ffordd Pen Llech just clinched the Guinness World Record for the world’s steepest street: The townspeople of Harlech, Wales, worked hard to steal the recognition from Baldwin Street in Dunedin, New Zealand.

At its steepest point, the gradient of the street in Wales is 37.5 percent, beating out Baldwin Street’s 35 percent. “I feel sorry for Baldwin Street and the New Zealanders,” Gwyn Headley, who spearheaded the campaign, told The Guardian, “But steeper is steeper.”

Guinness World Records has a surprising 10 criteria for the honor, including a blueprint of the street in question. This was the toughest for Harlech residents, because the thousand-year-old road was there long before roads were planned out with blueprints. So surveyor Myrddyn Phillips created one from scratch, using a satellite dish and chalk to calculate every possible measurement. Another criterion is that the road must actually be used by both people and vehicles. This one was easy, considering it leads to Harlech Castle, a UNESCO Heritage Site that was built over 700 years ago.

Having just lost to England in the Cricket World Cup, New Zealand is having a rough month—which Headley does feel bad about. “At least they have the Rugby World Cup … for the moment,” she said.

Because of its opportunities for bikers, motorcyclists, and other thrill seekers, Baldwin Street has become something of a tourist destination, which Dunedin residents have capitalized on by establishing nearby food, drink, and souvenir shops. Since the street is just as steep as it was before losing the world record, it’ll likely still function as a tourist attraction. But the townspeople are understandably disappointed, and one even suggested resurfacing it to increase the gradient.

In the meantime, Harlech is planning a party. “We know the anticipation has been building for quite some time now and I’m pleased to see the outcome has brought such joy to the residents,” Guinness World Records Editor-in-Chief Craig Glenday told The Guardian. “I hope Harlech enjoys the celebrations and that the new title brings lots of people to the beautiful town.”

[h/t The Guardian]

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