Salaah

Q: If the Sunnats of Fajr were missed because time was less before sunrise, must it be read after sunrise?

Q: I have a question regarding a person travelling through different time zones? How does one go about determining what Salaah to perform when if they are travelling from one time zone to another? For example a person intends to travel from New York city to India. A person travelling from New York city to India or a surrounding country will have lost a day in this journey. I am writing a more clear example related to my question, please kindly advise me.

I board the airplane after performing Esha salaah in New York city, it will travel via Dubia to India. When I arrive to Dubia/India, I will have lost a day. My questions are as follows:

1. Whilst the plane is in the air, what salaah do I perform (bear in mind that I performed my esha before boarding in New York city)?
2. How do I calculate the salaah times since the plane will be travelling over different countries and time zones?
3. Can a person perform salaah whilst they are seated in their seats even though they have ability and facility to perform it in normal position in the plane?

Any other clarification or explanation or additional information will be appreciated concerning this question.

Q:

1. Which Surah is sunnah to read in witr? I know about Surah alaq, kaafiroon and ikhlaas what other surahs.
2. The dua we read qunoot in Witr has that come in Hadith. Also in Witr Salaah we do rafe yadain is there any daleel in Hadith.
3. It comes in the Hadith something to the effect that do not read witr like maghrib and we do. What does this mean?

Q: While I am travelling, I have qadha of zuhr and asr namaz. So shall I read the namaz again after travelling as full namaaz or as kasar?

Q: For males and females- where should the thumbs be kept in sajdah- in line with the ears or eyes?

Q: I have heard that Salaah is more makrooh when our trousers (pants) are folded up during Salaah? Please advise with the reference from Hadith.

Q: Is one allowed to change one's niyyat of Salaah (during salaah) from Fardh to Qadhaa?

Q: Whilst praying maghrib salaah, what should we do if we accidently pray surah falak and surah naas in the three farz rakaats. Do we pray the same surahs in the two sunnat rakaats as well or can we pray any other surahs?

Q: My question is regarding the raising of the index finger and the motion of the right hand during salah.

1. Is the finger to be lowered at "wa ashhadu anna Muhammadan"
2. Is the right hand to be kept closed from the moment at which the index finger is raised, up until Durood Ibraheem (Alayhi-salaam) or right until tasleem?

Q: I belong to the Hanafi maslak. Due to some reason I arrived late for Esha. I prayed individually. However I prayed all 20 rakats Taraweeh with the Imam. Can I pray witr with jamaat?