How many days on average can you survive without food or H20?
Indicate your subject in the "School Subject" box, so those with expertise in the area will respond to the question.
Since this is not my area of expertise, I searched Google under the key words "survival without food water" to get these possible sources:
http://www.google.com/search?client=safari&rls=en&q=survival+without+food+water&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.