My eight year old son can do all of them except tie his shoes, buckle a belt, and put on a watch, and cut his nails. He has some serious fine motor skills issues. He can heat up soup and other foods in the microwave. The last time I was sick he made me canned chicken soup for lunch.
I'm not sure if can clip his nails because he bits them. He can wash his hair since he had it buzzed. We've pushed him to have self help skilled because he has ADHD, SPD, and dysgraphia. The stuff he can't do like tie his shoes and buckle his belt, we make sure he has shoes and pants that he can put on his self, so he is as independent as possible.