Q: Is it permissible for Quran quani / recitation of Quran-e-shariff by a gathering in a house?

Q: Kindly send ruling regarding "Istikharah".

Q: An Imaam said Allahu Akbar in stead of Sameallah who liman hamedah. He did not make sajdah sawh. A brother got angry and made him repeat the salah. The Imaam was not present on this day hence the chaos. My question is this:

1. Was sajad sahw necessary?
2. Does the salah go through with out it?
3. Did they have to repeat the salah?

Q: Which is more preferred and rewarding? Sunnah and Nafal Salah at home or at the Masjid?

Q: 

1. In salaah I was reading a surah after surah fatiha. As I was reading it I wasn't sure if I read my surah fatiha, so I started from the beginning with surah fatiha. Is my salaah accepted?
2. In the future if I forget if I read surah fatiha what should I do? Should I make sujdah sahu , or as above?

Q: Please, Could you tell me if it's allowed:

1. To crack one's fingers 
2. To cut one's nails after maghrib ?

Q: There are 2 silence boards in the masjid, but the one in the masjid has a white background and the head and hand are black color. Sometimes when I join the saff this board falls in front of me, or to my left or right, or sometimes diagonal (2 o'clock). Would in such instance my salaah with this board makruh? I have told the chairman about this board and he told me since the head has no eyes there is nothing wrong with it. Is this true? Since I have told them and they say there is nothing wrong with it, and if it is in reality indeed makruh is it still makruh for me since I have approached them about?

Q: Do I also have to repeat my Asar salah if I read it in shafi time with a shafi Imaam?

س: لو شك المأموم في الركعة الثانية أنه قرأ الفاتحة في الركعة الاولي ام لا,ماذا يفعل؟

Q: After reading a fatwa on islam-qa I am somewhat over concerned cautious in doing the takbirat, tasmi, tahmid inbetween the postures, and I mostly end up doing sajdah sahw as precaution. What is the solution for me?