Various Masaail on Qadha Salaah

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: 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?

Q: Is qaza namaz acceptable if the prayer was skipped on purpose due to laziness?

Q: If one comes out of a coma, will he have to make qadha for those salaah that he missed while he was in a coma?

Q:

1. Is Azaan Sunnat Muakkada for Qadha Salaats?
2. If one leaves the Azaan constantly for Qadha Salawaat, will he be sinful?

Q: Please could you explain the method of performing qadhaa salaah missed from the time of puberty, as well as clarify the following:

1. Besides sunrise, zawaal and sunset, are there any times during which one cannot perform qadhaa salaah?
2. Should qadhaa be performed before or after adhaa salaah?
3. Is there a limit to the number of qadhaa salaah that can be performed at a time?
4. Does qadhaa have to be performed in the sequence it was missed? If I have missed a salaah today, do I make up that salaah first, or do I continue making up my previous missed salaah?
5. Any other information that you think will assist me in this regard?

Q: If a person has qadha salaahs, can he leave out the Sunnat-e-Muaqqadah and read the qadha salaahs?

Q: Is Qadha-e-Umri a fardh namaz or nafil?

Q: I have a lot qadha salaahs to make up. I am performing as many as possible after each five Salaahs. I perform qadha salaah instead of sunnat ghair muakkadah and nafils. I would like to know, is it ok to miss out performing sunnat muakkada as well so I can complete all my qadhas quicker by being able to pray more?