2. all I remember from this is ..there is a vampire that live in the hills ...an old man from a village goes to kill him ..comes back with the head of the vampire but " something is strange about him" says his friends... his dog won't stop barking at him...
This sounds like the incredibly atmospheric "Black Sabbath" (1963) by Bava.
The other two also tickle some brain cells. The first has that element that crops up in numerous vampire films: a vanquished vampire is accidentally provided some blood and reawakens. Still, the setting you describe rings a bell. I'm wondering, and it is quite likely it was, one of the Hammer films. The question is which one...
EDIT TO ADD: Gerry beat me to it with "Black Sabbath."