Does anybody know of some kind of treasure trove of physics problems? Imagine you were a physics teacher writing a book & wanted to include a few problems on calculating the coulomb force exerted by a ring of charge, or a line of charge etc... or wanted to include calculations on moments of inertia of a few geometric bodies, would there be a massive book/list of nearly all the possibilities, like all the possible problems, that you could look in & choose a few from? Again, with projectile problems there are many perspectives from which questions can be asked & I'm just wondering if there's some resource that lists almost all possibilities in any areas of physics in a very systematized fashion. It seems to me that textbook authors refer to some almanac of physics problems, but I could just be wrong and they modify old problems in old books by adding Alice & Bob rhetoric. I'm afraid that Schaums are the best there is...