Sunnats and aadaab of wudhu

Q: I want to know about wudhu. I live alone and I want to know if I can do my wudhu only wearing my underwear. The reason being is because I don't want to make my new clothes wet while doing wudhu.

Q: During wudhu is it Sunnah to make khilaal of the fingers, beard and toes three times or once? What is the reference for the above from saheeh Hadith?

Q: I wanted to know the sunnah method of khilaal of the fingers. Should one place the fingers of the left hand in the right hand only or vice-versa as well?

Q: Is it permissible to recite the duas of wudhu when performing wudhu in a bathroom containing a toilet?

Q: If masah of the neck is not fardh and also not sunnah so why we do that in wudhu?

Q: What is the method of ghusl and wudu in the Hanafi mazhab? I just want to be sure that whether I am performing ghusal and wudu correctly.

Q: I wash my hands at the start of wudu, but not during washing my arms. I have been washing wrist to elbow. When wiping my ears I have only wiped the main ear entrance and the outside of the ear, not all the contours. Is my wudu invalid and if so because of my ignorance do I have to make up all these prayers?

Q: If there is attached toilet bathroom, then can we read dua of wudhu, etc in the bathroom part?

Q: I am asking that not long ago I found out that while doing wudu at the end when you do masah, I used to wash my ears first then wash my hair couple of times and I found out the real order and started doing it like the order you really should. So I'm asking that I'm not sure what's the ruling on that because some people say it's okay if you didn't know but now I'm sending this question to you because I really want to know?

Q: While performing tawaaf my wudhu broke due to blood coming out from a wound due to the crowd. I renewed my wudhu with zam zam water so is my wudhu and tawaf valid?