The first one can probably be buffed out with SHR, I'd also take a crack at the second one with it. The one looks deep and an easy wet sand (2000 and above) followed by SHR should do the trick. The last one, you probably should find a body shop.
Also, I agree with the Junkman, if you can feel any of it with your fingernail, follow my last comment.
I've done wetsanding in the past, and am not afraid to jump in, but if you never done it, it's probably best to take the finger nail test and if you can feel it, call the body shop.
Hope that helps