What is the result if you deep silver in hydrochloric acid, sulfuric acid, nitric acid?

Answer 1

Silver should be stable in HCl and sulfuric acid.
However in HCl it should became incredibly brilliant because you will solubilize the thin layer of oxide present on the surface.

Nitric acid will dissolve it, just check the relative potential of silver and of nitrate ion.

Old sulfuric acid (very yellow) or Oleum (Sulfuric anhydride in sulfuric acid) should also eat silver, but probably not at room temp.