Are you the same person, or in the same class, as the studnet who posted http://forums.adobe.com/message/5437679?
The answer, at least from me, is still the same. We don't do your homework or take your exams here. If you are a student and you need help, ask for it at school so the professor knows he needs to communicate better.
Actually, I've decided to give you a hint, so you can do some looking and figure this out for yourself. Everything you need for either of those tasks is accessed from the File menu...
And a further hint. Indesign does not have a black and white or grayscale working colorspace, so you never truly have a black and white layout, though all of the objects in the file may use only black ink. You can, however, output a PDF, in a couple of ways, that will convert your color file to one that uses only black.