Advanced mechanics books with answers

Maybe_Memorie

I'm studying Lagrangian and Hamiltonian mechanics at the minute along with special relativity and basic field theory. I'm using the first two volumes in Landau/Lifshitz and Goldstein. The problem is though that there's very few problems in Landau and there's no answers in Golstein so I've no idea if my solutions are correct.

Any similar books with answers?

Or better yet, anyone have the answers to Goldstein?