Conditions & Fundamentals of Hajj and Umrah

Q: I intend going for umrah. Due to my leg problem, I need to wear a compression sock. The compression sock covers the entire leg. Is it permissible for me to use this sock while in ihraam? 

Q: Is it permissible for a healthy person to perform nafl tawaaf on the electric scooters or wheelchairs available in the Haram, even though he is healthy enough to perform the tawaaf while walking? 

Q: Is there any penalty for holding the ghilaaf of the Ka'bah during tawaaf of umrah, or tawaaf in general? Also given the fact that it is perfumed, is there any penalty that one must pay for after holding the ghilaaf, because its itr came onto the person. 

Q: Can the two rakaats after tawaaf be performed outside the Haram Shareef? 

Q: If one goes for umrah or hajj, and during the journey, his ihraam clothing becomes soiled, can he change into a clean ihraam, or is it necessary for him to continue using the same ihraam while merely washing the soiled area? 

Q: Can one perform tawaaf during sunrise, zawaal and sunset?

Q: Can women perform Maghrib Salaah followed by Esha Salaah individually in Muzdalifah? Also, can men do the same or is it compulsory to offer the two salaah in jamaat?

Q: My concern is as follows:

Alhamdullillah, Allah Ta'ala has granted me the opportunity on several occasions to perform Umrah, as well as the opportunity of Hajj. The problem is, I have a problem with my haidh. I have an issue with stained discharge. At the time when I performed Umrah and Hajj, I was unaware of the fact that the discharge was in fact haidh. Hence I performed ghusl early, and very likely spotted after. It is very rare that I do not spot. There is a very high possibility that when I performed my Umrah, and Hajj, I required ghusl. Hence I would have performed all fard, wajib and nafl tawaaf in a state of impurity. Are the Umrah, and Hajj valid? Is any damm required from my side?

Q: A musafir offers 4 rakats Isha namaz after Maghrib salah at muzdalifa behind an imam who offered only 2 rakats (not sure if he was musafir or muqeem as few people offer qasr even muqeem) due to confusion but later once he comes to know, he offers 2 rakats Isha namaz alone. Is the namaz okay or not?

Note: He offered the sunnat and witr after the 2 rakats of Isha salah.

Q: When I was performing Hajj, in mina, muzdalifah and throughout that day where you stone shayateens etc... I noticed that before and after urination wadi has come out of my private part. I am also sure that wadi touches the ihraam which means that my ihraam may also be not clean during that time. I am worried that my hajj may not have been accepted or may be I have to pay for damm (hajj penalty)?