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At first glance, it looks easy. But it’s stumped many over the years, starting in Japan. The problem went viral in Japan after a recent study found only 60 percent of people between the ages of 21 and 29 could get the correct answer–down from 90 percent in the 1980s. Despite appearing simple, Presh Talwalker of Mind Your Decisions noted what had fooled...

Suppose your water heater broke so you couldn't take a hot shower. You go to a person and ask them to check out your water heater. That person comes to your house and uses a bunch of spare parts and then fixes it so you pay him or her for the repairs. Is this person more likely: An accountant? OR An accountant and...

Let's start out easy. Add the following numbers from top to bottom as quickly as you can in your head. Did you get 5000? Well, that would be... wrong. The Answer: 4100 The Explanation: This is just a simple case of your brain getting ahead of itself. You were probs totally on a roll until you got to to the last addition. 1000 + 20 =...

Well, everyone knows that putting ... at the end of three nines in a row means that 9 goes on infinitely, so you answered false. 0.999... could never equal 1, right? Answer: Nope. Wrong. It is, in fact, equal to one. Here's a proof to prove it: The Explanation: The reason this is so hard to grasp is because the concept of infinity...

Did you multiply the 1 x 0 first and then add the rest of the ones together and get 12? Wrong! The Answer: The answer is 2. Yes, 2! The Explanation: Since there are no operator symbols (+, -, x, /) at the end of each line, there's no mathematic reason to believe that each line is part of the same equation. And...

Are you ready for a fun challenge? According to a study only 1% of people can see the animal hidden in the image below. This hypnotic image has been shared online but a lot of people: But can you spot the animal in the optical illusion? Here is the image: Can you see it? Look again! Here is the shrunken image Don´t get dizzy!...

From time to time one must take a break from obligations, routines, and the busy life in general. It can help to clear the mind – and recharge your batteries so you can jump head first into tomorrow’s challenges. Mindteasers like crosswords, optical illusions, sudoku, and other puzzles make us exercise our brain in a way that offers a slightly...

Puzzles are fantastic, and we have a challenging one for you today. Can you find the correct pattern and provide the answer to this math problem in a short time? 1, 2, 6, 24,120, ? What do you think should be after 120? Solving puzzles is an effective and efficient way to exercise your brain. The brain, like all other parts of...

Traces of the RoundUp herbicide were discovered in popular beers and wines, according to a report from the U.S. Public Research Group (USPIRG) Education Fund. RoundUp, a popular weed-killer that uses glyphosate, was bought by Germany’s Bayer AG. It was previously owned by U.S. agriculture firm Monsanto. The USPIRG tested 15 beers and five wines and found glyphosate, a carcinogen, in 19 of...

There is a homeless man in Rio do Sul in south Brazil who often sacrifices his own food to feed the stray dogs around him. At a time when he suddenly required emergency treatment, his kindness came back to him like a boomerang, for the faithful canines he had been feeding made sure he wasn’t alone in his time of need. The...