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1Everyday Math › FractionsHardA man leaves 17 camels: half to one son, a third to another, a ninth to the third. How does the wise judge settle it?Wrong8.2s0
2Everyday Math › PercentagesHardA share price falls 50%. What percentage gain does it need to get back to where it started?Wrong6.6s0
3Everyday Math › FractionsVery hardWhich fraction's decimal begins 0.011235..., spelling out the Fibonacci numbers?Wrong6.1s0
4Everyday Math › ProbabilityMediumThe "friendship paradox" says that, on average, your friends have more of what than you do?Right6.2s+93
5Everyday Math › Number FactsMediumWhat comes next: 61, 52, 63, 94, 46, ...?Wrong10.7s0
6Everyday Math › Famous MathExpertIn the "paradox of the court", Protagoras sues a pupil who'd promised to pay once he won his first case. For what?Right12.7s+84
7Everyday Math › ArithmeticEasyTwo US coins add up to 30 cents, and one of them is not a nickel. What are they?Wrong6.9s0
8Everyday Math › Famous MathHardCards show A, K, 4 and 7. Rule: a vowel on one side means an even number on the back. Which must you flip to test it?Wrong14.4s0
9Everyday Math › GeometryMediumCounting every size from 1x1 up to 8x8, how many squares are on a chessboard?Wrong5.2s0
10Everyday Math › Famous MathEasyWhich word is spelled incorrectly in every dictionary?Right5.0s+95