Jamaat Salaah and Imaamat

Q: Can you please explain to me the method of namaaz if I miss 1, 2 or 3 rakaats with jamaat?

Q: I was asked this by a friend, if a person, in his teenage years led one fajr salaah in the state of janaabat, what amends does he have to carry out in order to make this right with Allaah Ta'ala? This happened in 2006. He does not know the exact date of the salaah.

Q: If the Imaam writes the taweezes outside the musjid, then a person can pray salaah with him? Is his salaah valid or not?

Q: Is salah valid if it is offered in:

1- Ahl-e-Hadith musjid?

2- Jamaat-e-Islami musjid?

Q: What is better, to offer Salaah behind a temporary Imam who don't have a beard and his pants are below his ankles and I am not sure about his level of Islamic knowledge or alone without jamaat?

Q: Is it permissible for a Hanafi Imaam to recite Bissmillah aloud during his Salaah?

Q: I joined the Asr salaah when the Imam was coming up from ruku in the second rakaat. While he was coming up from ruku I joined the Salaah and went into ruku by accident. At the end of the salaah, I stood up and completed two rakaats and made sajda-e-sahw. Is the Salaah valid?

Q: If the Imaam of a musjid writes taweezes and gives people taweezes , then is his salaah valid and is the salaah of those who perform salaah behind him valid?

Q: I have a very simple question. If I reach late for the salaah and the imam is in sujood, can I join him? I know the rakaat will not be completed but can I join?

Q: Is salaah valid if the Imam is wearing pants below his ankles and don't have a beard?