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

Vandaag is het 23 September 2017

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The superstitious president - logic puzzle

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   Rating: 3.4/5.0

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Mr. Fisher is a night watchman in a large company. On a certain morning when Mr. Fisher wants to go home, his boss tells him: "I'll go for a businesstrip to Norway. Tomorrow I will depart from Heathrow airport." Mr. Fisher however advises him to take a boat. "Why should I?" asked the president. "This night I dreamed that the plane to Norway crashes, just before it will land," is the response. The president smiles first, but since he is pretty superstitious he decides to take the boat. When he arrives in Norway, he is told that the plane which he should have taken had crashed. When the president returns from the trip, he gives a big reward to Mr. Fisher and immediately fires him. Why?

Dots and lines - logic puzzle

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   Rating: 3.3/5.0

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Can you connect all nine dots with only four straight line segments without losing contact with the paper while drawing? 9 dots

Planting trees - logic puzzle

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   Rating: 3.3/5.0

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Somebody would like to have a new garden with 10 trees which have to stand in 5 rows of 4 trees each. How can he or she achieve this?
After the new garden has been layed out, neigbor Sym becomes enthousiastic. He says: "I also would like to have a new garden with trees. But it should have 12 trees which have to be planted in 6 rows of 4 trees each. Furthermore, my garden should be symmetric." How will his garden look like? And can you tell something more about Sym?
trees