Doesn't know the difference between:
"Do you know Susie Stoddart ?" (A question that doesn't imply something regarding the person)
and
"Knows Susie Stoddart ?" (A question implying something about the person, the point of this thread)
"Do you know Susie Stoddart ?" (A question that doesn't imply something regarding the person)
and
"Knows Susie Stoddart ?" (A question implying something about the person, the point of this thread)