Puzzle 729
What is the 10th prime number?
2, 3, 5, 7, …
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Puzzle 730
My shirt has 5 buttons, my cardigan has 2 buttons, and my suit jacket has no buttons.
How many buttons do my trousers have?
Puzzle Copyright © Kevin Stone
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Puzzle 731
Sam takes 20 days to build a wall.
Taylor and Kelly each take 10 days to build a wall.
How long will it take the three of them to build a wall if they work together?
Puzzle Copyright © Kevin Stone
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Puzzle 732
What is the smallest positive integer, which, when multiplied by 6 …
… gives a number consisting of only 8's?
Puzzle Copyright © Kevin Stone
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