Summarized Fatawaa
• What is the ruling on reciting the Chapter after Al-Faatihah , and what should a worshiper who forgets it do?
Any other part of Qur'an that a worshiper reads after Al-Faatihah during the first and the second Rak`ahs is a Sunnah, and forgetting to do so doesn`t nullify prayer, and doesn`t require performing Sujood As-Sahw ( prostration of forgetfulness).
• Is a woman`s prayer considered invalid if non-Mahrams (marriageable men) saw her offering it ?
A woman`s prayer isn`t invalidated if non-Mahrams saw her offering it, but she had better pray in isolation.
• I see horrible dreams although I perform the prescribed prayers, what do you make of that?
Praise be to Allah the Lord of the Worlds.
Be mindful of Allah while awake and he will safeguard you from whatever evil you see while asleep. We advise you to make the pre-sleep supplications. And Allah the Almighty knows best.
• Is it permissible for a praying person to make supplication in each Sajdah( a prostration) of obligatory prayer?
It is permissible for a praying person, whether praying individually, or in congregation, to make supplication during Sujood(prostration) in obligatory, or voluntary prayers. However, it is disliked for the Imam to do so since he is required to spare the prayer performers any sort of hardship, unless he is leading a certain group who don`t mind him extending the prayer.