I started into "A Brief History of Time" and realized it was so completely over my head that I tossed it.... and I have been on page 67 of "Catch-22" for going on 4 years now, so I'll only count ones that I have finished.
Nine.
And I read Angela's Ashes in both English and French. At the same time. I'd read it in French and then in English to make sure that I understood everything.