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If you want clever brainteasers to test your smarts, we've got you covered with easy, tricky, and hard riddles for adults (with answers) for all skill levels.
They test your brain and critical thinking skills, provide some constructive, educational fun, and provide tangible examples of math lessons you’ll actually use in real life. Math puzzles come ...
How many of these tricky brain teasers can you answer correctly? 58 Brain Teasers That Will Leave You Stumped The post 12 Logic Puzzles That Will Test Your Smarts appeared first on Reader's Digest .
P. T. Barnum saw the opportunity to promote his show on this puzzle card and offered ten thousand dollars to Sam Loyd to change the name of the puzzle to "P.T. Barnum's Trick Mules" [7] Later on, and after Loyd had offered the puzzle to other firms, it was renamed again to "Famous Trick Donkeys", which sold more than 100,000,000 copies. [8]
The solution appears very obvious if the owner withdraws every day only $10 from $50. To add up 40 + 30 + 20 + 10 using the same pattern from above would be too obviously wrong (result would be $100). The answer to the question, "Where did the extra dollar come from?" can be found from consecutively adding the bank rest from three different days.
The puzzle is known to have appeared as early as 1981, in the book Super Strategies For Puzzles and Games. In this version of the puzzle, A, B, C and D take 5, 10, 20, and 25 minutes, respectively, to cross, and the time limit is 60 minutes. [6] [7] In all these variations, the structure and solution of the puzzle remain the same.