Witr and Nawaafil

Q: What is Sunnat Muakkadah and Sunnat Ghair Muakkadah?

Q: I want to know if one can perform two rakaats nafl salaah before Fajr salaah besides Tahajjud and the sunnah of Fajr?

Q: In our town, the Imaam started reading Qunoot e Naazilah for more than a month because of Corona Virus. Is this correct? If it is not, please tell us how to explain to him and the rest of the musallis.

Q: Can I perform my fardh only for my salaahs and leave out my sunnats, since I'm at work and when I get home I see to my baby, husband and cook etc.

Q: If a woman has qadha salaah, is she allowed to read nafl salaahs (chast/awwabeen, etc.) and is she allowed to read the sunnah salahs (sunnah of Asr, etc.) or must she first complete her qadha?

Q: Can I do istikharah for knowing the truth or is there any dua for revealing the truth?

Recently, I have been stuck into some confusions and doubts about my partner. But I really don't know if he is telling the truth or not. I saw many hints that's why I just cannot put trust on him. It's killing me inside. I cannot concentrate in my daily work. I don't know if it's true or shaytan is making me think things? So I badly want to know the truth so that I can stable my mind and move on. Is there any solution or any dua?

Q: What is dua  for istikharah? And After performing istikharah, is there a certain number of days one should wait before making his final decision?

Q:

1. How many rakaats can I pray for Tahajjud, without including witr?

2. How many rakaats of Ishraaq can I pray, and when is the time for Ishraaq?

3. When is Chaasht prayer time if Zuhr is at 12:41? And how many rakaats should I pray for Chaasht Salaah?

4. As for Awwaabeen Salaah, how many rakkats can I pray?

Please include any mustahab surah’s that I should recite in the rakaats. e.g. For Ishraq first rakaat, recite Ayat-ul-kursi, and for the second rakaat, recite Surah Ikhlaas. 

Q: A person is in the habit of reading nafl salaahs. If that person has limited time (e.g. he is running late) should he hastily read his nawaafil (though the namaaz is done) or should he leave it out?

Q:

1. Can one pray istikhaarah (for marriage) while on menstruation?

2. Is a good feeling a sign of a positive istikhaarah?