Qadha Salaah

Q: Please advise if the women is pure after her menstruation or postnatal bleeding, does she have to offer qaza salat's, which were not offered during menstruation or postnatal bleeding?

Q: I want to know if I missed zuhr salaah and if its time for asr salaah, can I still perform zuhr salaah and then make asr?

Q: I have a lot of years of umra Qadha to pray. I try to do as many as I can after each Salaah. My question is can I sit on a chair to pray even more when I get tired?

Q: If I don't read salah on time and within an hour or less I get my haidh, so do I have to make qadha after I get paak?

Q:

1. What is the procedure of doing missed Qada namaz of last 10 years, approximately 500 salaahs?
2. What will be intention?
3. How many Rakat for each salat?
4. Is there qada for witr?
5. As I have lots of missed namaz, can I do qada salat instead of doing any nawafil as well tahajud? Please explain in detail so that I can do it.

Q: When we read qazaa, do we make intention of reading the fardh salaah we missed or do we make intention of reading nafil salaah?

Q: What is the shar'ee definition of a sahib-e-tarteeb?

Q: Do we have to make Qadha of Sunnah also when we make Qadha of Fardh in each of the Salaah we have missed. What is the Shariah Ruling on this?

Q: Can I read 2 rakaats Tuhajjud and the rest my Qaza umree? I find that I am least disturbed at that time (tuhajjud).

Q: A person has excessive (many years) of Qadhaa Salaah. Due to weakness, would it be correct for a person to substitute the Sunnah Muakkadah
before/after each Salaah with Qadhaa Salaah? For example, at the time of Fajr, instead of performing two Rak'aats of Sunnah Muakkadah, a person makes intention and performs two Rak'aat of Fajr Qadhaa. Or at the time of Zuhr, instead of performing four Rak'aat of Sunnah Muakkadah, a person performs four Rak'aat of Zuhr Qadhaa. Would this be correct?