Three friends are hiking to a remote destination in a wilderness area.
The hike takes six days. Each person can carry only enough food and water for four days.
Without sacrificing anyone or endangering anyone’s life, the goal is to get as many people as possible safely to the destination.
How many hiker can safely get to their destination?
Ah! Click here to read the solution. 
SelectShow 
Each hiker starts out with a fourday supply of food and water.
After the first day, the first hiker gives a oneday supply to both the second hiker and the third hiker.
This leaves first hiker with a oneday supply to return to the starting point.
Now second hiker and third hiker each have a fourday supply again.
After the second day, second hiker gives third hiker a oneday supply and keeps a twoday supply for himself so that he can get safely back to the starting point.
This gives third hiker a fourday supply of food and water, sufficient for the four days remaining on his journey.
Thus, the answer is that only 1 hiker can finish the journey. 🙂
