Binary numbers are sums of powers of two. How does this affect which of them are even and which are odd?
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For a mobile to be balanced, every level needs to be balanced. What supports have to move to achieve balance?
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There are two ways all of the constraints of this puzzle can be satisfied. What might the two solutions have in common?
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Factorials are big. Really, really big. How can we find the final digits of a large factorial?
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What can you infer from the information provided about these foods to put them in order by price?
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Calcdoku puzzles are solved with logic and arithmetic. In this one, the arithmetic is complex!
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Someone forgot to shut the tailgate. Would more friction have helped to prevent this mess?
Series 6 of 6
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