Various Masaail on Qadha Salaah

Q: If one is making qadha salaah of Maghrib, Esha or Fajar Salaahs, must they read the Surahs aloud or can they read it softly?

Q: Before I used to pray and then I stopped praying. Now I started again and I was wondering what can I do for the missed prayers?

If I repent, pray the sunnah and ask for forgiveness will I be forgiven and enter Jannah?

Q:

1. My menstruation cycle is regular in the sense that I have 14 clean days, 1 day istihaza and 10 days haiz. It's the same every time. So it starts at 4.43pm. I am usually always alert about performing my asr salaah before the time of haiz starts. Unfortunately today I was unwell earlier and had to sleep and over slept and only awoke after the time of haiz began. Will this asr Salaah be considered as qaza?

2. As a saahib tartib if I make ghusl and I have only enough time to perform the fard salaah and not the qazaa. When do I read the qazaa?

Q: If a person prays Fajr, and misses the Dhuhr and Asr prayer, can he directly performs the Maghrib prayer (without making up this Dhuhr and this Asr) if he has missed more than five (other) prayers a very long time ago in the past?

Q: I want to ask a couple of questions regarding qadha prayers.

1. What should be my niyaah when praying qadha namaz and what time of the day should I offer it?

2. How should I offer my qadha prayers, given that I have the following ones left? (I have only made an estimation, because I don't remember the count exactly): Fajr-4, Zuhr-6, Maghrib-1, Isha-Salaat-ul-witr of 2-2.5 years (around 800)

3. Do I need to offer all of the witr prayers or is there any alternative to it? I request you to outline the complete method, so that I can offer them as quickly as possible.

Q: Can one read voluntary prayer if one has missed prayers to make up?

Q:

1. If I am offering my qadha namaz and iqamah is called for the next prayer, do I have to stop praying qadha?

2. If I prayed full qadha namaz in this situation, is my qaza prayer valid?

3. What if I am just about to complete my qadha prayer and iqamah is called for the next prayer?

Q: If one has made Hajj and and during Hajj one made sincere taubah for missing previous salaah and since Hajj one has never missed another salaah, do you still have to repay your outstanding salaah that was incurred in the years before your Hajj? I am asking because I read that the person who performs Hajj emerges sinless (all sins forgiven) like a newborn baby, and sincere taubah was made for missing previous salaah. 

Q: Are you allowed to read qadha salaah replacing 4 and 2 sunnah of zuhr

Q:

1. As a youth, someone made an oath to not do something and they did it, they then fasted 3 days to expiate the oath (as they were unable to do anything else). Later that person apostatised from Islam but came back to the Deen. Do they have to redo the expiation for the oath broken? No oath was made since that time. 

2. Also, in terms of salah missed, are salahs missed over years must be made up by someone who Apostatised but later came back to the Deen?