A desert for six days, provisions for four. Arithmetic seems to prevent the crossing from the beginning. The challenge is to find a way for at least one to get to the other side.
The desert expedition
Riddle statement
Crossing the entire desert requires exactly 6 days of march.
Each explorer can carry provisions for a maximum of 4 days. The explorers can walk together, exchange supplies and return if they want.
How many explorers are needed at least for at least one to reach the other side?