If you hear grinder like noises while applying brakes, it is generally caused by a lack of brake pad material. Better to just call a tow truck and get your brake pads replaced.
When you hear sounds of something being hit bluntly, it could be caused when the brake shoes hit the backing plate.There are ways to fix it - one is to replace the rear drums, use the emergency brake, etc.
Rusty hinge noises are caused due to cheap, low-quality brake pads. It's better to spend a little more in order to avoid problems in the future.