Call me a miserable old sod, but ... I don't think you should be asking people to answer specific questions on your personal statement. You've already come up with the questions, so the answers should be just as easy.
You know better than anyone why you're choosing to study the subject.
I've no problem with anyone asking for help or asking someone to review a draft, but asking for answers is lazy. You're going to have to answer questions far more taxing than those, so get your skates on and do some work.
No offence, like.