On the latest episode of Scam School, Brian Brushwood presented three old brain teasers. Here's my favorite.
Make a five-by-five grid of dots. Then draw a cross by connecting the dots in such a way that five dots are enclosed by the cross and eight dots are outside the cross. The example on the right satisfies the first part (five dots inside the cross) but it fails the second requirement (it has four dots outside, but needs eight.)
You can learn the solution by watching the video.
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 […]
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)
If you suffer from sleep disorders, there are a number of methods out there to mitigate them: Ambient noisemakers, relaxation tapes, sleep masks, you name it. One thing that doesn’t get tried is headphones, for good reason. Even the smallest earbuds are liable to wake you up if you roll over the wrong way. Now […]
Looking to upgrade that old laptop or tablet? Holiday sales may be way on the horizon, but there’s an even better way to get like-new tech for a steal. Here are 10 of our favorite deals on personal computers and gaming gear – refurbished, renewed or brand new. Acer Touchscreen 11′ Chromebook 16GB (Certified Refurbished) […]
Vape technology has been around long enough that vapers are starting to get picky about their gear. Luckily, so are we. From disposable models to cutting-edge touchscreen atomizers, there’s a vaporizer in this roundup to suit every taste. Hera 2 – World’s Most Advanced Dual-Use Vaporizer Choose between dry herb or oil extraction modes – […]