Faraaidh of wudhu

Q:

1. What are fard acts of wudhu? If I want to wash my face and there is some sweat on my face, can I make my hand wet then wipe my face or washing my face is required?

2. Also, if I were to wash my arms or face, normally I wet my hand and touch the tap to close it and wipe my face after touching tap. The tap was wet due to me closing it, so is my wudu valid since my hand had mustamil (used water )?

3. Also when doing masah, if my hand touched my wet face and that water also came in doing masah is my wudu valid? (Here also mustamil water)

4. Is doing wudu in steps compulsory or not?

5. Is it compulsory to complete the wudu before the hands and face get dry?

Q: If someone has applied henna and wants to perform wudhu, should one remove a covering bag and wipe the head, still covered with henna, or can one wipe over the covering itself.

Q: If someone applies henna on the head and then covers the head with a polythene bag, will it be permissible to do masah on the head during wudhu?

Q: During wuzu is it farz to wash the face from the hairy part of the forehead? A person whose hair grows above the forehead due to baldness then from which part of the forehead is it farz to wash the face?

Q: Are the hands, including the wrist, included in the faraaidh of wudhu?

Q: Does cream fall under the mas’alah of oil with regards to wudhu and ghusal?

Q: During the wudu im certain that my neck area was wet when wiping over the head. And after the wudhu it got dry and I kept getting thoughts that my wudhu was invalid. What should I do please clarify?

Q: In wudhu, masah of quarter of the head is fardh. How do you determine or how do you measure quarter of the head? Please give easy explanation in detail so that I can explain to the children?

Q: Nowadays when we apply henna,after washing for a day or two its normal but after few days it starts shedding off. If we try to scratch it then it pains and causes reddishness. In such a condition, if we do wudhu, will it be permissible?

Q: Due to a small tiny cut on my left knuckle middle finger I put a plaster on it, I removed the plaster afterwards and washed my hands but realised later after that there was still some residue of the plaster stickiness/glue left so if you rubbed it off it would form like a sticky rubber effect. Because I may have washed impure hands afterwards whilst the stickiness was there and not realising and then wiped them with a towel, I am concerned impurity may have been spread or would be pure as I initially did wash my hands but did not realise the stickiness was still there. I am a waswas sufferer and I am getting better everyday with the help of the almighty therefore I am always very concerned on purity as I always think I am spreading impurity everywhere.