Faraaidh and Sunnats of ghusal

Q: How is ghusal accepted when one has braces? Is it not compulsory for every part of the teeth to be wet?

Q: My question is after you masturbate, do you need soap to shower with and whatever I use to clean myself with like a scrubber, do I have to clean that with soap?

Q:

1. If one takes ghusal without any soap and sampoo and just uses the water, will ghusal be valid ? I just went in rinsed the dirt off my body and made ghusal normally and came out.

2. If one has mistakenly had a pee drop in the underpants would ghusal be waajib?

3. How does one take ghusal at sea and would ghusal be accepted if there is others swimming in the ocean as well while one just went in to swim with a shorts. Would the ghusal be valid is one's owra is open?

Q: If someone forgets to do wudu (as a part of ghusal) while doing ghusal, but immediately after ghusal he realized his mistakes and performed wudu, is his ghusal valid?

Q: I have a question after my ritual bathing in my thought I know if I washed my right sole or not. I also suffer from waswas so must I repeat my bath or just leave it?

Q: While in janabah some semen got onto my leg. I did ghusal and purified myself thoroughly. Not long after I discovered the semen dried on the hairs of my leg. I scraped it off and re-washed the part as a precaution. Was my initial ghusal valid or did the dry semen prevent the water reaching the skin on the leg?

Q: In fardh gusal, if you forget to put water in the nose but you still remember water went in your nose while having a bath and after a few minutes of gusal you just put water just in your nose but your body was dry and you prayed after, so your ghusal is acceptable or do you have to make ghusal again?

Q:

1) Please tell me I found little mucus in nose after some time of ghusal, it is valid or not?

2) I was not aware few years ago about wet dream and I never performed ghusal for that, now I know about wet dreams so one ghusal is enough for many years as I don't know how many times I had wet dreams?

3) If l forget to wash some parts during ghusal and I remember this after some hours, can I wash them or renew my ghusal?

4) Can I perform one ghusal at the same time for many purposes means janub and haiz?

Q: A woman has to perform ghusal from haidh. She has to go perform umrah. Now if she has a wound and her stitches are yet to be opened and the doctor has prohibited from wetting the wound what should she do?

Q: If a person fulfils all the fardh of ghusl that is gargling the mouth three times, making water reach the soft bone of nose three times and washing the body thoroughly such that no part remains dry, is the ghusl valid or the sunnats of ghusl have to be performed too? Does skipping the sunnats render ghusl invalid. Also one of my cousins told me that ghusl means wetting the entire body. If this is so then why does ghusl have faraaidh?