How do people live without water?

Answer 1

It is impossible to live without water. You don't need just pure water, though it is a nutritionally fantastic beverage, because basically every drink you name contains some water.

People who don't have access to water, or at least clean water, are liable to illness and death. That's why poor countries still have diseases that developed countries eradicated long ago, such as Cholera.

A shorter answer would be: People can not live without water.