Hajj & Umrah

Q: I live in Mumbai (India) and I am planning to perform Umrah. I will be taking a flight from Mumbai to Jeddah and continue onwards from Jeddah to Makkah via bus/car. I know that I need to be in the state of ihram while passing the Miqaat. I will wear Ihram at Mumbai airport so that all I have to do while passing the Miqaat (in the air) is make the Niyah.

My query is that I do not know when should I make the Niyah so that I am sure I have not missed the Miqaat boundary. I will be travelling in a flight which will not be notifying me when I pass over the Miqaat area. What is the way that I should follow? Should I make Niyah from Mumbai (India) airport OR should I make Niyaah 1 hour before reaching Jeddah? There can be a chance that I do not pass over any specific Miqaat point (rather pass through between 2 Miqaat points), what do I do in that case? ?

Q: If a person stops his tawaaf to perform the fardh salaah, does he have to restart the entire round or can he continue the tawaaf from the spot where he stopped?

Q: When coming back from Hajj/Umrah, Saudi has a rule that each pilgrim may only bring with him 5 litres of zamzam, packed in a special box. People say that the reason for the rule is that they want to avoid water packed in normal bags from spilling on the luggage bands. If a person secretly packs extra zamzam in his normal bags, will he be sinful for breaking the 5 litre rule even if he packs it in a way that he is sure there is no leakage?

Q: If a person in Hajj commits several violations of the same type, for example, if he forgetfully wears a topi on five different occasions, does he need to pay a penalty for each individual violation or will one penalty suffice (due to the principle of "tadaakhul")?

Q: Is it permissible to perform nafil tawaaf on a wheelchair despite being able to walk? I know that it is impermissible to make tawaaf in a wheelchair for obligatory tawaafs, but I would like to know if the ruling is different for nafil tawaaf?

Q: What is Tawaafuz Ziyaarah and Tawaafaul Widaa? How will one compensate for not performing it?

Q: If a person is performing hajj this year, should he refrain from clipping nails and removing unwanted hair from the first of Zul-Hijjah as he will be making Qurbani or should he clip his nails and remove unwanted hair on the 8th, before putting on his ihraam?

Q: I am going for hajj. I had a fight with my cousin regarding some business. He cheated me in my bussiness. Do I have to meet my cousin before going for hajj.

Q: Is it makrooh to live in Madinah as I heard that it is makrooh to live in Makkah as the sins committed there is more punishing? Can anyone live in Madinah permanently from any other country?