Sunnats and aadaab of wudhu

Q: When should khilaal of the fingers be made in wudhu? Should it be made after washing the arms till the elbows or after making masah of the head?

Q: I just got 4 of my wisdom teeth removed and my gums are in pain and constantly bleeding. If I rinse my mouth a bunch of blood comes out. So how do I make wudhu, and how do I pray?

Q: Should the dried pus on a pimple be removed during wudhu and ghusal?

Q: In the process of wudhu, there are 4 fardhs; washing the face, the arms, masah of the head and washing the feet. Kindly clear my doubt if washing of the face comprises of gargling the mouth and cleaning the nose.

Q: Does permanent ink affect the validity of wudhu and ghusal?

Q: When I was doing wudhu for fajr, I checked my eyes for any dirt in the sides, and found some in my left eye, so I cleaned it and rubbed both eyes. But after I finished fajr prayer, I found some dirt besides the right eye. I had not seen this dirt during wudhu. The dirt was dry and 3mm thick. Will my Salaah and wudhu be valid?

Q: Is my ghusal and wudhu valid if I dye my hair? Is my salah valid?

Q: I have just recently become baaligh. I have been performing all my salaah and have not missed any. However, I used to make "wudhu" while showering. One day, I realised that sometimes while showering I did not wash my face and make masah (faraaidh of wudhu). I cannot recall how many salaahs I have performed in this manner. Please advise what I should do.

Q: Can you say bismillah in a bathroom when you do wudu, bathroom might have a toilet or might not.

Q: During wudhu, if a person forgets to wash a limb and only remembers after washing another limb, what should he do?