[Q]: Objective: To tell if a hard boiled egg is fully cooked.
[A]: To tell if a hard boiled egg is fully cooked, just spin it. If the egg wobbles, then it's raw. It will easily spin when fully cooked.

[Q]: Objective: How to clean a hammock after use?
[A]: Brush the hammock with a soft brush and detergent then spray with a hose with cold water and let it dry naturally

[Q]: Objective: fingers
[A]: rubbing eyes easily

[Q]: Objective: How would a person decide how big to make the leather piece for their knife sheath?
[A]:
Measure the length of the shaft of the knife then cut the piece of leather twice as long so that it can be folded in half and sewn on the sides to sheathe the knife.