Reddit reviews What Does it All Mean?: A Very Short Introduction to Philosophy (Paperback) - Common

You might also try reading Nagel's What Does it All Mean? with her:

>This book is a brief introduction to philosophy for people who don’t know the first thing about the subject. People ordinarily study philosophy only when they go to college… I would be very glad if the book were also of interest to intelligent high school students with a taste for abstract ideas and theoretical arguments… This is a direct introduction to nine philosophical problems, each of which can be understood in itself, without reference to the history of thought… The center of philosophy lies in certain questions which the reflective human mind finds naturally puzzling and the best way to begin the study of philosophy is to think about them directly

And I can't help but plug this math book for kids (more number theory than probability, but very, very good).