N/A for everything except for NAME. u put NA on name, you probably get literally NA on that name
and for address, since address line 2 is optional, i leave it blank
so it really depend on the question
most people only have either 1, either passport or travel document and not both especially if your wive is in overseas
and if you dont have a number for something, means u dont have that number. u dont require to have to fill a section if u dont have USCIS online number for example