Do Vampires Kill Humans? Well, yes. But not often. It is against the law after all so why deal with the grief if you don't have to? Vampires do need human blood to survive, though really only once a month or so if they use other sources. And they don't need to drain a person in order to be satisfied, but getting carried away does happen.
What Can Kill a Vampire? Stakes of course. As in the wooden ones through the heart. The other kind (spelled s-t-e-a-k) can actually help out if served rare. You can also behead them and burn the body or drain them COMPLETELY. I would not recommend any of these, however, as they are extremely dangerous and exceedingly hard to do, unless it's daytime. Sun does not kill vampires, but it does make them drowsy and drains their superhuman abilities, so they tend to avoid it.
Are Vampires All Good Looking? Well, no. The famous ones usually are. Just take a look at Hollywood. We are a shallow race and tend to idolize those that are nice to look at. Along these lines, no - vampires do not all have the same color eyes. I am not sure where this rumor began, but it is not the case. Just as hair and skin color remain the same (albeit paler pallor is inevitable) so do the eyes.
I'm sure I have missed touching on some information of interest to the public, so please feel free to post a comment and ask a question. As long as it is appropriate, I will be happy to answer or find out.
Also, I am pleased to announce that I will be posting my first interview on Paranormal Point of View! Look for Interview with a Mermaid coming a week from today. I will post a reminder along with Monday's blog. If you have any questions for mermaids. Post them here and I will consider using them in the interview.