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 […]
Adobe’s design software catalog is essential to any graphics program, as much for their simplicity as their versatility. Anyone can be an effective graphic designer with tools like Illustrator and InDesign – and the right training in their potential. That’s where the Adobe CC A-Z Lifetime Bundle comes in. Whether you’re getting your feet wet […]
Businesses of any size continue to use PDFs despite – and perhaps because of – their stubborn resistance to simple editing. But for those who need a little flexibility on their documentation, the search is over for alternative software. PDF Expert for Mac is the catch-all solution for wrangling those PDFs, and it’s available at […]
When it comes to tech, smaller is better, and these items fit the bill both in terms of size and price. We’ve rounded up our favorite stocking-ready gadgets, most of which are already on sale – and you can take an additional 15% off any of them with the special code MERRY15. iPM 3-in-1 Fast […]