No, they do not mind pumpkins.
I heard it is because of the smell, that's why they are carved and left outside of the house to keep vampires away.
yes
It depends what type of "Vampire" you're talking about... Some are said to hate garlic, pumpkin, sunlight, the smell of a dog...
All canines, above anything else: owing to some struggle between their ancestors, vampires and all canines hate each other more strongly than anything else. Water: Vampires avoid total immersion in...