I recently read a book about a boy who is in a plane crash and is stranded in the woods with nothing but a hatchet. Brian survived 57 days using nothing but his hatchet and the materials around him. He showed ingenuity in many ways.
First of all, Brian was very creative. He made a shelter, fishing spear, a bow, and figured out how to make fire by striking his hatchet against rocks.
Brian also used his intelligence to survive. He was able to find berries by following birds. He learned to spear fish by aiming below them to avoid missing them because of the refracting light.
In the end, Brian was rescued. But he survived for 2 months in the wild using his creativity, ingenuity and intelligence.