They can work if you have a meeting of the minds as far as working towards being together. They last as long as the two people involved want them to.
Sometimes. Not for everyone. Both need to be fully committed or it will just fall appart.
I think they work or not depending on the individuals involved, like any other relationship. I agree with some previous opinion telling that they take even more commitment than other relationships, so you have to be very sure that you really want this relationship.
Only if you have a private jet at your disposal.
Mostly they don't
One thing u should know is that d person u r dating will never be completely honest with you
You can never trust in a long distance relationship
It's very hard
They can work, but only to a certain extent. The big problem with it is because of the distance, it's hard to stay attached when you're building a life somewhere else. And when your seperated for a really long time, you start forgetting what that person is really like. You start questioning their actions. My longest relationship long distance was a year and a half (more or less). It ended because cheating had become a problem. Not being in a local relationship can feel like you're not in one at all when you're out with your friends or at home with nothing to do and no one to call. They can only work if you guys can find a way to keep it going is by keeping a lot of communication going.
In my experience, they last about two years before you both grow too far apart.