For How much time can someone stay without eating or drinking?

For How much time can someone stay without eating or drinking? when I ask this to someone they're not really sure. Do you know?
Answer:
3 minutes with out air, 3 hours with out shelter, 3 days with out water, 3 weeks without food, its called the rule of threes.

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I think someone can go like a few weeks without food, but only 3 days without water. That seems far-fetched, but there's water in anything you drink, so it isn't just pure water.

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The human body can only survive 7 days without water but it can go a long time without food depending on how much of a fat store they have.

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well last year i got very sick, i did not eat or drink for two weeks, i then had to go to hospital cos i was dehydrated and low blood pressure maybe left another week i would have died, so id say three weeks.

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An average person who is otherwise fit and heathy can survive only 3 maybe 4 days without fluids and up to 3 weeks without food.

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