Common App Doubts!

1)In India we have naming like father’s first name will be initial before my full name and all my mark statements and passports have this M. Mohammed Farhan , and my father’s name is Mohamed Joyes , where do I put my initial? or should I leave it as common app asks only for first name, middle name and surname.
2)What Should I fill in My Common App, Education>Grades>Cumulative GPA ?
Which exams mark should I fill?
3)Is there any solution for ISC board students from India? no teacher even my school principal does not know about these details as no one from my school have applied to US universities so I feel really stressed as I too do not know some specific questions,

  1. List as Mohammed or as M. Mohammed. Makes no difference on the application.
  2. List as N/A if not on your transcript

Thanks a lot.

1)Do you know when to complete the CSS profile if I am applying Early Action?
2) Do I have to submit it along with the application or later ?
3)Should I fill it after securing admission and knowing that I will be in or before ?