Salaah

Q: I want to stay home to focus on my studies and quit going outside because whenever I go outside the home, I get distracted. Can I perform my salaah at home rather than in the musjid?

Q: Please advise on the following situation: 

My wife has one sister, who is younger than her and unmarried. Their mother passed away last year. Her sister is working and currently stays alone. 

My wife has asked if her sister can join us on holiday as she has no one to travel with. 

Furthermore, my wife has proposed that if I do not agree to her sister joining us on holiday, she will have no option but to travel alone with her sister and our children to either Durban or Cape Town.

 My wife does not feel comfortable leaving her sister alone at home, nor does she feel comfortable with her sister travelling alone. 

Please advise if any of these options put forward by my wife are permissible. Are there any other options that can be considered?

Q: If quarter of the Awrah is exposed for less than three subhaanAllah, is the salaah valid? 

Q: During the second rakaat of a sunnah salaah, someone while reading another surah, remembers that he forgot to read Surah Faatihah. Thereafter, he reads Surah Faatihah and another surah. Must this person perform sajdah sahw or not?

Q: If a lady is reading salaah and she reads a bit loudly on purpose, does her salaah break? Can she read a bit loudly if she concentrates better?

Q: Does recitation of الله رب العالمين (After Surah Mulk) break ones Salaah?

Q: If a person is performing Nafl Salaah and he makes several intentions, and thereafter he breaks his Salaah or it is nullified, what is the method of Qadha?