yes, because vampires hate light and always stay in the dark and come out at night. It is also because they burn in the sunlight but some modern vampires will glow like a diamond in the sun (twilight)
Well, yes, but only because if they could stand in the light without frying they might just eat in the light also, but they can't so they won't.
Yes vampires feed in the dark but watch out there are more than 9999 billion vampires out there they're out there to get more and more of them so werewolves would die oh yeah did i mention I'M ONE OF THEM WATCH OUT PEOPLE!!!!!!!!!!!!
vampire bats: yes vampire: no, they feed when they're hungry. light or night.
only when the eat garlic, and get submitted to sunlight
they don't eat, they only drink blood
The presumption here is that you are asking about something real. Since you are not, vampires will eat what ever the author who created them makes them eat. From a literary perspective, vampires in stories will often not feed on diseased prey, so it could be said that they eat only healthy things.
vampires can not go out in too much sun so they prefer to hunt at night but if the day has not that much sun then they can go out and eat people.
there are 2 types of vampires the vamps who eat animal blood and the vampires who eat human blood
Yes, the less subtle group of vampires will eat an entire body. These are usually physically distorted so they can handle the job. Often grotesque.
All vampires eat food they all do really I am a Hybrid Vampire and I eat human food all Vampires eat human food!
they can also eat raw meat its not as good but they can survive on it