Wudhu

Q: Does my hair turning greasy naturally after not washing it for like 3 days form a barrier so my masah for wudu isn’t valid?

Q: Whilst making wudu, if a person's wudu breaks by passing wind or vomiting etc., does he have to start the wudu from the beginning again or must he continue from the limb he was washing? 

Q: There is this book called "The Tablespread Of the Holy Prophet" written by Muhammad Faisal

There is a section on cheese. This hadith is a Sahih Muslim Hadith 687, Narrated by Abu Hurayrah (radhiyallahu anhu).

"Performing ablution in the mosque, he said: I am performing ablution because of having eaten pieces of cheese, for I heard the Messenger of Allah Ta'ala say: Perform ablution (after eating anything) touched by fire."

I would like to know what is meant by "touched by fire" and why should we make wudhu after eating something that is touched by fire?

Q: Some books mention that one should recite Surah Qadr after wudhu. Example Talimul haq, practical salah by Talimi Board.

Q: After salaah I saw a little dough stuck on my nail. Was my wudhu valid? Do I have to repeat my salaah?

Q: A person has a medical condition where water fills in his legs. He has to wear a stocking/sock that is very tight. This sock helps mitigate the condition. It is very difficult to take off and put on the sock.

In this situation, will it be permissible to make masah on these socks in wudhu?

Q: When making wudhu using a mudd, what is the preferred sunnah method, does one throw the water in the palms and then use it for each limb, or can one merely submerge the hand in the utensil and use it that way, after washing the hands first?

Q:

1. Does leaning against something whilst making dhikr with the eyes closed break wudhu?

2. Does falling asleep on a desk in front of a person whilst sitting on the floor break wudhu?

Q: Is it sunnah to use new water each time when washing each limb (when making wudhu)? Or can one take 1 scoop of new water for each limb (in the instance when using a mudd) and rub the limb 3 times? Which way is sunnah?

Q: I have been using a hair patch on my head since 2016. I just want to ask whether I can do wudhu or ghusal with a completely fixed hair patch? As it's practically impossible to perform wudhu in a public place with lifting the hair patch.