Answer
(Fatwa: 1041/1041/M=1432)
(1) If you want to ask about the standing position of your wife in case of offering salah with husband with jamah, then the ruling is that the wife would stand behind husband not beside him.
(2) No, rather it is mustahab.
(3) No, the night of Bara’at is a blessed night, how can it be a bidah (innovation)? Yes, the nonsense that is done in this night is bid’ah.
(4) There is no proof of these duas.
(5) Janazah Salah itself is a dua for the dead, hence there is no proof of dua just after it.
(6) Dua may be asked by raising hands for the dead ones but it is better to supplicate without raising hands at places where one fears that the common people would think that he is asking from the dead.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband