Synthesized answer
The passages mention several "natural questions about languages" that the author hopes to answer [1, 2]. These include why there are so many languages [1, 2], why they are difficult for adults to learn [1, 2], and why "no one seems to know the plural of Walkman" [1].
The passages state the author's intention to answer these questions [2]. However, they do not list any questions that remain unanswered.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
atural questions about languages, like why there are so many of them, why they are so hard for adults to learn, and why no one seems to know the plural of Walkman.
Title: The Language Instinct by Steven Pinker, Garikoitz Knörr de Santiago Description: From the Preface... I have never met a person who is not interested in language. I wrote this book to try to satisfy that curiosity. Language is beginning to submit to that uniquely satisfying kind of understanding that we call science, but the news has been kept a secret. For the language lover, I hope to show that there is a world of elegance and richness in quotidian speech that far outshines the local curiosities of etymologies, unusual words, and fine points of usage. For the reader of…