You buy 100 pounds of potatoes and are told that they are 99% water. After leaving them outside, you discover that they are now 98% water. The weight of the dehydrated potatoes is then a surprising 50 pounds!
Potato Paradox
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References
Paulos, J. A. A Mathematician Reads the Newspaper. New York: BasicBooks, p. 81, 1995.Referenced on Wolfram|Alpha
Potato ParadoxCite this as:
Weisstein, Eric W. "Potato Paradox." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PotatoParadox.html