Witr and Nawaafil

Q: Can we make niyyat/intention for chaast/ishraaq/hajat/shukur/taubaa when performing salaatul tasbeeh?

Q: I would like to know if I can pray these 3 surahs in my tahajud salah; surah waqia, surah mulk and surah sajda because I pray out of salah so I can add them to my tahajud salah.

Q:

1. In Witr Salaah in the month of Ramadhan, if the masbooq joins the Imam in the ruku of the last rakat, is it wajib for the masbooq to recite dua e qunoot when he stands up to complete his missed rakat and in which rakat will he recite dua e qunoot?

2. In Witr Salaah, if the masbooq missed all the rakaats and did not recite dua e qunoot when he stood up to complete his Salaah, is it compulsory upon him to repeat the Witr Salaah after the Salaah time has expired?

3a. If the masbooq turned for salaam with the Imam accidentally or not knowing the masala and he did sajdah sahw at the end, is the Salaah valid?

3b. In the above situation, if he didn't do sajdah sahw, is it compulsory to repeat the Salaah when the Salaah time has expired or is the Salaah valid but incomplete?

4a. When the Imam did salaam to do sajdah sahw, the masbooq accidentally or not knowing the masala, he also turned his head for salaam and then did sajdah sahw at the end of the Salaah, is the Salaah valid?

4b. In the above situation, if he didn't do sajdah sahw, is it compulsory to repeat the Salaah when the Salaah time has expired or is the Salaah valid but incomplete?

Q: I was offering the four rakat sunnat before zuhr in the mosque. I was offering the second rakat when the iqaamat started, so I completed my salah like a two rakah prayer to join the jamaat. Will I have to offer the sunnat again after zuhr or is it permissible to skip it? And also should I do sajdah sahw when I repeat the sunnah to after the jamaat?

Q: As we know that in fajar namaz if we are late and in danger of missing the farz prayer then we do not offer the 2 rakat sunnah prayer and directly offcer the farz prayer snd join the imam as muqtadi. I want to know that do we have to offer the 2 rakat sunnah prayer after the farz prayer? Kindly guide me. I am talking about fajar prayer.

Q: I normally read the esha prayers at the masjid and then come home and delay the sunnah and 3 witr until after midnight. Is it okay to read it so late? If not what is the latest time it can be read?

Q: I want to know that when I enter the masjid and the imam is in the 2nd rakat of the fajr prayer, should I first offer my 2 rakat sunnah or directly join the imam in the 2nd rakat of the fajr prayer?

Q: In Witr salah in the month of Ramadhan, if the masbooq joins the Imam in the ruku of the last rakat, he didn't get a chance to recite dua e qunoot with the Imam, is it wajib for the masbooq to recite dua e qunoot when he stands up to complete his missed rakat and in which rakat will he recite dua e qunoot?

Q: Does Salaatut Tasbeeh erase major sins also?

Q:

1. In witr salaah in the month of Ramadhaan, how should a masbooq complete his salaah?

2. Is it wajib for the masbooq to recite dua-e-qunoot when he stands up to complete his salaah?

3. In which rakaat will the masbooq recite dua-e-qunoot?