Method of Salaah

Q: In our area, the Imam starts to make dua with such a voice that muqtadi could know that Imam has started to making dua and all the muqtadis start making dua after listening to the voice of Imam (e.g. if he starts dua with alhamdulillahi rabbil a'alameen, he says alhamdulillahi...... with voice and then make entire dua silently). He ends the dua with voice so that muqtadis could know, and muqtadis also end their dua after listening to his voice. No one starts making dua before and none completes dua before the Imam. What is the shar'ee status of this all described above? Should the muqtadi not start making dua before the Imam? Should the Imam inform the muqtadees about his dua by starting it with voice or he should starts his dua silently? If one has finished his dua before Imam, should he wait until the Imam finishes or one should he stand up to offer the sunnats (if there are sunnats after that fardh salaah)? Please clarify the questions and the Shar'ee status of the custom of dua described above.

Q: My question is that when we pray Fardh salah behind the Imam should we recite anything in between the 2 sajdahs or it is sufficient that Imam recite?

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

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: According to the book Halabi Kabir p. 480: 

Is the invalidity of salaah lifted when a mistake that would invalidate the salaah, is re-read correctly?

Q: Are Hanafi's allowed to pray this Tashahhud:

التَّحِيَّاتُ لِلَّهِ وَالصَّلَوَاتُ وَالطَّيِّبَاتُ السَّلَامُ عَلَى النَّبِيُّ وَرَحْمَةُ اللَّهِ وَبَرَكَاتُهُ السَّلَامُ عَلَيْنَا وَعَلَى عِبَادِ اللَّهِ الصَّالِحِين. أَشْهَدُ أَنْ لا إِلَهَ إِلَّا اللَّهُ وَأَشْهَدُ أَنَّ مُحَمَّدًا عَبْدُهُ وَرَسُولُهُ.

Q: In namaz when one salaam is done people stop in the middle than do the second salaam. What is the correct way of doing both salaams?

Q: One person who has ta'lluq with the salafees told me that making dua with jamaat after salaah is not established. Therefore we shouldn't make it in group. Rather each one should make his dua separately.

Q: If we are short in time when praying salat, instead of reading the whole "Allahumma salli `ala muhammadin wa.." in Durood, can we suffice with just "Salla allahu alayhi wa sallam", will the sunna be fulfilled by this? Also, is it ok to just mention the Prophet as a pronoun or should he be mentioned by name i.e. "Salla allahu ala Muhammedin wa sallam"?