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

Vandaag is het 20 January 2018

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Classic riddle - puzzling puzzle

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What has four legs and only one foot?

Infected? - math puzzle

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Suppose that 1 out of 1000 people of a specific country are infected with the deadly X-virus. An inhabitant of that country goes the hospital and gives some blood for a survey. Her blood is checked on the X-virus by a test which gives a correct outcome in 99% of the cases. The test points out that the woman is infected. After the investigation, a doctor tells the woman that he is 99% sure that she is infected with the X-virus. Can the doctor be right by making this worrying statement? spuit

Fair play? - logic puzzle

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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