Giving preference to Salaah with Jamaat

Q: A few days back I was just leaving home to go to masjid for salaah and my uncle (who is an Aalim) came unexpectedly with some friends to drop off a parcel. I asked him if he is coming to the masjid and he said no (They were musafir). My mother was alone in the house and none of them are her mahrams so they obviously could not be in the house while I went to masjid, so they had to drop off the parcel and leave immediately. This Aalim seemed to be upset because I went to masjid and did not accommodate them. Did I do the right thing or was I supposed to miss salaah with jamaat to accommodate them?

Doubting if one made one Sajdah or two Sajdahs

Q: I sat back after prostrating and started doing 'Attahiyyatu Lillaahi Was-Salaatu Wat-tayyibat.." etc. and I then thought if I had done 2 prostrations or not, but I could only recount 1 for sure even though my feet were in such a position that I usually keep them in on the second prostration so it's probable that I did 2 so anyway I went back and said "Rabbighfirli, Rabbighfirli" and prostrated again and finished the salaah and did 2 prostrations of forgetfulness. But now I doubt whether my salaah is valid, it was more probable in my mind that I did 2 salaah, but surety was that I know I did 1 for sure and second was probable so I did 1 extra to be safe. Salaah valid or not ? Actions to take? I know I have waswasah so it would of been best to ignore the doubt. But in this case seems like I went with the doubt. Is my salah valid or should I repeat?

Goodwill/Increasing the Price of the Shop Fittings

Q: I am aware that in Shari’ah, it is not permissible to charge anything for goodwill. However, I was told that if you attribute the same excess to the ‘shop fittings’ figure for example, it will now become permissible. Is this true? How can it be permissible when the purchaser, seller and the receiver are fully aware that this inflated figure is not a true reflection of the shop fittings figure?

Getting involved with a girl on facebook

Q: I met a girl on facebook 2 weeks ago. We became good friends in only one day and the second day I told her that I love you. She also responded
positively but after two days I prayed namaz and I felt very guilty of myself for getting involved in such a henious practice as I had never done this before. So I told her to forget me and I cut off all the contact with her but now she is saying that you betrayed me. She regularly calls me but I don't pick up her calls. I only left that girl for the sake of Allah. Please help me out, have I done right or have I betrayed her really? Will I be punished for
hurting her? What should I do now? Please help me mufti sahb.

Washing the mouth in ghusal

Q: 

  1. Is the plaque (white dirt) that accumalates on the teeth neccesary to remove and the wax on the ears for Ghusl to be done?
  2. Till which portion of the mouth is it Fardh to wash for Ghusl to be done? 
  3. Dirt stuck in between the teeth without removing them, will the Ghusl be valid?

Maaf for the Takleef, I always had doubts regaarding this, resulting in me spending lot of time doing one Ghusl.