I'm thinking of a forest. (An actual one, with trees, not a person.)
Rules:
You have an infinite number of questions
They must all be yes/no questions.
First correct answer closes the game.
Something just dawned on me. You know how we went from two digit years to four digit years because of the Y2K bug? In like 9K years we'll have to go to 5 digit years to combat the problem again