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

Vandaag is het 17 November 2019

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On this site you'll find lots of logic puzzles and riddles, puzzling riddles,
science puzzles and math puzzles and riddles.

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Building a wall - logic puzzle of the day

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   Rating: 2.5/5.0

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To protect his country a king decided to build a wall made out of stone along the border. The wall had to be 3 meters thick and 5 meters high. The border of the country has a length of 500 kilometers. Assuming that one cubic meter of stone weights about 3000 kg, how much heavier becomes the earth by building this wall?

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