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#### Sunday Afternoon Maths LXI

XYZ#### Sunday Afternoon Maths LX

Where is Evariste?Bending a Straw

#### Sunday Afternoon Maths LIX

Turning SquaresList of All Puzzles

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If two people stand 1km apart and walk in the same direction, how far will the have to walk until they collide due to the curvature of the Earth? (diameter of Earth = 12,742km)

If you enjoyed this puzzle, check out Sunday Afternoon Maths LXI,

puzzles about factorials, or a random puzzle.

puzzles about factorials, or a random puzzle.