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

Vandaag is het 22 September 2018

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Bookworm - logic puzzle

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A bookworm eats a straight way through a encyclopedia consisting of ten parts. Each part has 1000 pages. The bookworm starts on the front cover of the first part and ends on the back cover of the last part. From how many pages did the bookworm eat? encyclopedia

Slow matches - logic puzzle

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Suppose you have ten slow matches (also called match cord) and a lighter. If a slow match is lighted, it will burn for exactly one hour. The slow matches do not burn at constant speed, in other words it can happen that the first half of the slow match is burned in 15 minutes, while the remaining part will take three quarters. How can you measure exactly 45 minutes using these slow matches, and what is the minimum of slow matches you need for this?

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