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Use arithmetic reasoning to find which pair of containers lets you measure out a certain amount of water.

Computer instructions give completely different results depending on their order. Can you arrange them to obtain the difference of two squares?

A pentagon with three right angles is embedded in a rectangle. Do you have the geometric tools needed to find its area?

In order puzzles, each piece of information contributes to the solution. Can you find James's timetable for tomorrow?

To solve this Number Bunchers puzzle, you'll need to consider possible sums and products. What can you infer from the constraints?

When an object falls, its velocity can reveal its height. Use physics to measure the distance between two windows in a high-rise.

Finding areas can be tricky, but an extra line or two can make a big difference. What's the simplest way to get the area of the square in the middle?

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