From biology classes I remember that water from food we eat is mostly 'sucked in' (absorbed into blood) in the colon. I guess the same is true for water we drink. But if I eat something, it will reach the colon after say 4 hours, and if I drink a lot of water, I'd want to go to bathroom earlier than in 4 hours.

So is water absorbed not only in colon?

If it's absorbed in other organs, what % of it would be absorbed in each organ?