0 a problem for which it is hard to find the answer, especially one which people enjoy trying to solve as a game: --
The other six split up to look for four brainteaser puzzles placed at the fort.
Once the tribe latches their raft to the hitching post on shore, they race to solve a brainteaser puzzle, which releases a giant ring.
After completing the brainteaser, they climb up a sand hill, through a maze and over a second sand hill.
The tribe has the option to dig down several feet and search to uncover an answer key to solve the brainteaser.
Each brainteaser had to be successfully solved before they could move on.
