Salaah

Q: I am from Roshnee, studying in Azaadville (distance between Roshnee and Azaadville is 76 Km). My wife is from Rustenburg which is +/-100 km to Azaadville.

So we staying together here in Azaadville, but I do not intend ever settling down here because I have to basically just finish my studies.

Ps. We usually don't stay here for more than 15 days. So can the following intentions be permissible: 

My niyyah: My darul watan is still Roshnee, I make niyyah for safr when I leave Roshnee intending to continue my journey more than safr distance, and stay in Azaadville for less than 15 days (by our flat).

My wife's niyyah: She keeps Rustenburg as her darul watan as she hasn't established herself anywhere else yet, not Roshnee nor Azaadville. Azaadville is just a darus safr as she will not stay for more than 15 days like myself. She reads qasr when in Roshnee.

So do I read qasr in Rustenburg? Are these intentions correct or should we change our niyyah to base ourselves in Azaadville and work accordingly or what is Mufti Saheb's opinion?

Q: I have recently heard that if you start a prayer, even if that prayer is nafil or sunnat, and you break it, that prayer becomes wajib. I used to do this quite often in the past. Can I offer tawbah or must I make them up? I have no idea how much I have, so if I must make them up, how should I go about doing so? 

Q: Is it permissible for a female to read salaah audibly in her home where there is no chance of a non-mahram hearing her?

Does the ruling differ with fard, nafl and sunnah?

Q: Can we wear a leather belt in namaaz or not?

Q: If a Muslim gets a tatoo done, are you allowed to read salaah with it? Will it be a problem? 

Q: There is no masjid which pray namaz as per the true Sunnah method in our area. The nearest masjid is almost 14 km away. The nearest masjid follows Hanafi Fiqh. What should I do; should I pray alone at home or I got to the Hanafi masjid and pray as per Sunnah method?

Q: If one has made Hajj and and during Hajj one made sincere taubah for missing previous salaah and since Hajj one has never missed another salaah, do you still have to repay your outstanding salaah that was incurred in the years before your Hajj? I am asking because I read that the person who performs Hajj emerges sinless (all sins forgiven) like a newborn baby, and sincere taubah was made for missing previous salaah. 

Q: In nafl salaah, can I read Quraanic duas in sajdah?

Q: I forgot to recite a surah after reciting surah faatihah in the last rakah of witr salaah. I also forgot to recite dua qunoot in it. Will it be sufficient for me to perform sajdah sahw?

Q: Is it possible for the istikhaarah to come out wrong or bad if you give the mother’s wrong name?