Q: If one has a doubt if he missed a waajib or fardh act what should he do?

Q: If one intends to break his salaah does it break just by intention?

Q: How long is it waajib for jalsah in salaah?

Q: In s​alaah after ruku while standing when one is reading rabana walakal hamd. Is salaah valid if most of rabana walakal hamd was read standing and maybe a little while moving down? If not and one just bent his knees a bit and moved his hands forward, then is it valid? 

Q:

1. If when following the Imaam, the Imaam says allahu akbar to go to sajdah and you say it only when he says it but finished before he did. Is the salaah accepted? An is this for all takbeer and salaam? 
2. If you proceed for sajdah only after the Imaam or same time but you are there before he is. Is the salaah valid?

Q: What is the status of taraaweeh salaah that is performed in the month of Ramadhaan?

Q: When I came late for salaah and had to complete missed rakaats I read durood-e-ibrahim and dua. Does this make sajdah sawhu waajib? If yes and previously I should do this out of ignorance and cannot not remember how many times are done it what should I do?

Q: Which sunnat salaah if left out will it be sinful?

Q: If one has a habit of forgetting multiple things in a Salaah such as number of rakat, number of sajda, first tashahud and so forth, how that person would perform his salah?

Q: If we wipe our feet with wet hands and don’t actually wash them would it be sufficient to discharge the fard.