Because this contains contact information and a lot of information about me, I need to make sure you're a real person and that you're the type of person I wouldn't mind having access to the information. If you get a question you're not sure of the answer to, feel free to refresh (there are questions from a variety of different disciplines).

A traveler is planning a journey across a desert which requires six days to cross. A single man can only carry four days worth of food. What is the fewest number of men the traveler would need assistance from to cross the desert (assuming all men must make it out alive)?