Synthesized answer
The provided passages do not contain information about what questions remain unanswered in "The Essential Tension" by Thomas S. Kuhn. The snippet offered is a quote from Sir Peter Medawar praising Kuhn's desire to find the truth [Passage 1].
Therefore, it is not possible to answer the question about unanswered questions based on the given text.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: The Essential Tension by Thomas S. Kuhn Description: "Kuhn has the unmistakable address of a man, who, so far from wanting to score points, is anxious above all else to get at the truth of matters."—Sir Peter Medawar, Nature Categories: Science Pages: 392 Snippet: "Kuhn has the unmistakable address of a man, who, so far from wanting to score points, is anxious above all else to get at the truth of matters."—Sir Peter Medawar, Nature