Synthesized answer
The provided passages do not contain information about what questions remain unanswered in "Theory of Games and Economic Behavior" [1]. The passages describe the book as a groundbreaking text that created the research field of game theory and is considered a classic work upon which modern-day game theory is based [1]. However, they do not detail any specific unanswered questions within the book.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Theory of games and economic behavior by John Von Neumann, Oskar Morgenstern Description: Theory of Games and Economic Behavior is written by mathematician John von Neumann and economist Oskar Morgenstern and became the groundbreaking text that created the research field of game theory. It is considered the classic work upon which modern-day game theory is based.