By combining arithmetic and logic, we can deduce what digit corresponds to each letter. What is EH+AH?
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Jerome is using two differently sized containers to measure 10 liters of water. What's the smallest number of moves he needs to make?
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This figure is made from a triangle, a semicircle, and a quarter-circle. Can you find the shaded area?
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Although we can't predict the outcome of a random game, we can find the most likely result. How much do you expect to win?
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With few guests, the hotel can avoid putting guests in adjacent rooms. How many guests until they must have three occupied rooms in a row?
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Solving a Grid Fill puzzle involves logic and arithmetic. How can you make both rows sum to 6?
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We can infer a lot about the relationship between two angles in this circle with just a few angle facts. Which angle is larger?
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