Salaah

Q: Can women offer salaah in kameez shalwar with hijab or is it mandatory to put on an abaya till the feet? When I say kameez shalwar, I mean the one which is loose and not body revealing.

Q: Besides reading a complete Surah or atleast three ayaats of the Quaran after Suratul-Fatiha in salaat, I understand one long ayaat can instead too be read. But how long should the ayaat be and on what basis is the length calculated?

Which long ayaats (if any) are generally deemed preferable to read?

Q: Does a person have to perform sajdah sahw if he forgets to make qawmah and jalsah since both are waajib?

Q: If I make niyat of 4 rakaat sunnah salaah and the imaam starts jamaat salaah, can I make salaam after two rakats to join the jamaat salaah and make the remaining two rakaats after the jamaat salaah?

Q: If a person knows that due to some work he might miss the Asr Salaah, so in that case can he perform the Asr Salaah along with the Zuhr Salaah?

If yes, how many rakaats does he need to perform?

Note that this is not while travelling.

Q: If you think about something funny in salaah, and you don't fully laugh but a small sound is made from the mouth, then are the salaah and the wudhu broken?

Q: With regards to Friday Fajr salaah: If I read Surah Sajdah in 2 rakaats one week, and the next week read Surah Dahr in 2 rakaats, will I get the fadheelat of the sunnah? Because the musallees are old, and they do not like to read long salaah. For this reason, can I get the reward for the sunnah?

If there's no sunnah reward for this, then how can I get the sunnah reward?

Q: If the ankle of a woman is exposed for the duration of her entire salaah, is the salaah valid?

Q: I have many qadhaas over the past 3 or 4 years. I've tried guessing but I have absolutely no idea, records, nothing. I usually pray all 5 prayers on time now, so would it be okay for me to start praying my qadhaas without making an estimate?

As I've mentioned, I don't have the slightest clue with which to make an educated guess. The longer I keep trying to estimate, the longer it gets put off. It's been two years already.

Q: If one suffers from knee pain, can one pray on prayer mats that are softer and thicker at the feet and knees end than the sajdah end, such that the sajdah area becomes lower than the feet and knees?