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

Vandaag is het 21 January 2018

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Country puzzle - logic puzzle

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   Rating: 2.2/5.0

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If Costa Rica goes with Thailand, Cuba goes with Puerto Rico, and the Netherlands go with Yugoslavia, what country would the Ivory Coast go with?

Rowing - logic puzzle

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   Rating: 3.2/5.0

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1
11
21
1211
111221
312211
13112221

What number comes in the next row?

Slow matches - logic puzzle

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   Rating: 2.4/5.0

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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?