Start with 100 pounds of potatoes and assume that the potatoes consist of 99% water and 1% potato solids. Now, put those potatoes in the sun and let them dry out untill they consist of 98% water 2% potato solids. How much do they now weigh. The answer is 50 lbs. That's the Potato Paradox, but it's no paradox at all. It's a trick question. Watch the video and see how you are fooled.