You have 100 lb of potatoes, which are 99 percent water by weight. You let them dehydrate until they’re 98 percent water. How much do they weigh now?

???

So… There is 1 lb of solid, 99 lb of water to begin with. Now water becomes 98% of the whole thing…

???

Ref:
https://en.wikipedia.org/wiki/Potato_paradox