Logic puzzles, riddles, math puzzles and brainteasers - pzzls.com

Vandaag is het 20 July 2018

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Grandfather's birthday - math puzzle

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   Rating: 2.7/5.0

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More than twenty years ago, Tim asked his grandfather who was celebrating his birthday that day: "How old are you now?" Grandfather smiled and said: "Add the digits of my year of birth and multiply the answer by 4." Tim would have looked so uncomfortable that his Grandfather immediately added, "By the way, this trick also works with the year we have on the calendar now." What was grandfathers age?

Workaholic - science puzzle

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   Rating: 2.0/5.0

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On a particular evening a business man decides to work for some hours at his office in London because his wife gets out with her friends. After some hard work he opens the curtains of his office and looks outside (see the picture), but immediately he gets in panic. Why? city at night

Fair play? - logic puzzle

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   Rating: 2.4/5.0

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Susan is in the final of a match at the olympic games. At the moment she reaches the finish, all the other contestants are behind her back. She did not play unfair and did also not use doping, but she does not get the gold medal? Why is that? olympic rings