Take a look at the sequence. What number comes next? The answer is a no brainer – once you know the answer, that is.
Neil Sloane, founder of the Online Encyclopedia of Integer Sequences, starts explaining the answer at :22, so pause before then if you need more time to figure it out.
Extra footage of this video can be found here.
From our friends at Futility Closet: Here are a penny and a quarter. Make a statement. If your statement is true, then I’ll give you one of these coins (not saying which). But if your statement is false, then I won’t give you either coin. Raymond Smullyan says, “There is a statement you can make […]
Created by esteemed riddler Edwin F. Meyer, co-author of The Gedanken Institute Book of Puzzles. (TED-Ed)
I bought the Dover edition The Moscow Puzzles in 2014, and it’s still one of my all-time favorite puzzle books. Here are a few samples: Book description: This is, quite simply, the best and most popular puzzle book ever published in the Soviet Union. Since its first appearance in 1956 there have been eight editions […]
Get ready for the stream of your dreams, binge-watchers. There’s a contest afoot, and at stake is a lifetime subscription to Netflix. All you have to do is sign up, and you’re entered to win this ultimate Netflix plan. When does it expire? Only when you do. And hey, just in case you need something […]
There’s overwhelming support for clean energy, and the planet is giving us more reasons to invest in renewable power sources with every passing year. Even in the most inhospitable areas, wind and solar can provide a good chunk of our power, if not all of it. So why aren’t we all taking advantage of it? […]
Hey, we love Netflix and Hulu, but let’s face it: The whole setup doesn’t exactly encourage active viewing. For all the binge-watching we’ve done, it’s tough to expand our horizons or learn anything new – except for how many episodes of “The Office” it takes to make us fall asleep. It was only a matter […]