User blog comment:Akg-517/iCarly's Unanswered questions as of 9/4/12/@comment-1874176-20120410160620

Dan said (in his answering questions blog) Miranda herself asks the question about the goat quite a lot; noone knows.

As for #6 ... well, we've seen Carly's bathroom. If you look at the bathroom door in iToe Fat Ckaes and then at the door right across the hall from Carly's room (You can see it in iGo One Direction when Dr. Dresdin walks out, for example), it's the same. So, we know another room on the second floor.