Hair and Nails

Q: Is it allowed for a Muslim girl to use a nail file?

Q: 

1. I am currently 6 months pregnant. I am experiencing slight difficulty in shaving pubic hair. Is it permissible to have waxing done by a female Muslim?
2. Is it permissible to trim the hair due to split ends?
3. Is it permissible for a female to cut hair in layers?

Q: What are the different lengths of the zulfa and is it permissible to cut the protruding hair around the ear?

Q: What is the shar'iee beard length and how is this proven from the Ahaadith?

Q: My wife is in purdah and she wants to cut her hair in "layers". Is it permissible because I will be the only person seeing it? Will this be regarded as tashabuh bil kuffaar (emulating the kuffaar), because it is not for any fashion reason, rather only for me?

Q: Is there any authentic narration which directly and emphatically mentions that trimming the beard is a punishable sin? How is sin and good determined in Islam? Is it Haraam or Makrooh to trim the beard? Did Nabi (Sallahu Alaihi Wasallam) ever trim His Blessed beard? If not, how is a fist lenght beard is an emphasised Sunnah? Which is more rewarding a trimmed fistful beard or a completely untrimmed natural beard? What is the ruling if one trims before it reaches a fist lenght? On what basis does a person continue to be sinful if he trims his beard before it is a fistful while trimmimg after a fistful is not sinful?

Q: I have a baby girl and we cut her hair. At what age should we stop cutting her hair and grow it long?

Q: Removing hair from the back passage is very difficult, as i cannot see. At times najaasat gets stuck to the hair since it is long in that area. How can I cut it easily?

Q: Is it permissible to cut one's hair 2 lengths?

Q: Is it permissible to shave the moustache completely off?