The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.


Pyramid Construction 101

You are a pyramid construction manager in ancient Egypt. One of your chores is to move great stone blocks from quarries to the pyramids, hundreds of miles away. Unfortunately, due to a flying saucer union strike, the blocks cannot be levitated as usual.

You hit upon the bright idea of rolling the blocks on large wooden rollers. Each of your rollers has a circumference of two cubits. For abstract booking purposes we won't go into here, you need to solve this simple problem:

For each complete revolution of a roller, how far will the block move? Assume there is no incidental sliding motion.

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