Witr and Nawaafil

Q: Can you tell me what's the procedure for the salat "hajat”? And what's the purpose of this namaz?

Q: I have read that four rakaats (sunnat-e-muakkadah) before Zuhr salaah are equivalent in reward to Tahajjud salah. Is this proven from the Hadith?

Q: I have a question with regards to the wording of Dua-e-Qunoot according to the Hanifi Mazhab. The words ونتوكل عليك (wanatawaku alaika). Is it found in any Hadeeth? If not, would it be preferable to omit these words and suffice with the wording that we find and the Ahadeeths?

Q: Which salaah sould be performed last, witr or tahajud? I've now heard that the last namaaz has to be witr.

Q: Kindly advise with regards to the following:

1. I woke up for fajr and there was only enough time to read my fardh. Can I read my sunnats after sunrise?
2. When I am a‎​ musaafir is it better for me to read my sunnats or not?
3. The two sunnatul muakadah after maghrib, is it part of awabeen or is awabeen 6 seperate rakaats?

Q: I know that it is a sunnah to read the last 2 nafl of esha salah seated. Should one always do this, or should it be done occasionally only? Does this apply to the nawafil of dhuhr and maghrib as well?

Q: In Ramadhaan, if we are only two people in an apartment, is it better for us to perform witr with jamaat or is it better for us to perform it individually? In other words, during the month of Ramadhaan, does performing witr with jamaat only apply to the situation where one is in the musjid or does it apply to all places?

Q: Is it Sunnah to sit and read the last two nafl rakaats of esha?

Q: After the Esha Salaah, when the musallees had already performed their witr salaah, the Imaam made an announcement that the salaah had to be repeated as he did not have wudhu.

1. Should the 2 sunnah and witr salaah also be repeated again?

2. If nafl salaah was performed, should that also be repeated?

Q: Can a person read any nafl or qaada when tahajud time end before the fajr azaan.