Changing a tire

Bang on the back side of the tire with a metal maul, or on the wheel with a rubber maul. If it's really stuck tight, loosen all the lug nuts just a little, then drive it like that a few yards. Don't go any further than necessary because that will wobble out the tapered holes in the wheel. That taper must match the lug nuts and is needed so the friction surface will hold them tight.

Use a little anti-seize compound around the hub and center of the wheel to prevent future problem, but NEVER on the studs and nuts.