Qasar Salaah and Full Salaah

Permanently residing in one country and travelling to one's home country

Q: I permanently work and reside in Sydney, Australia with family while not owning any property here. My parents live in Lahore, Pakistan in a house under their ownership whereas I own a residential plot in Islamabad, Pakistan. 

I'd like to know if I am travelling and staying at any of the above three locations under 14 days, where should I offer full prayers and where would qasr prayer be required?

Will a person be a musaafir or muqeem when staying in Makkah and Aziziyyah?

Q: Insha Allah I have intention for Hajj. So we leave on the 28th of April from JHB. 

We'll be 10 days in Makkah

Then 12 days in Azzizia

Then 6 days of Hajj 

Then another 6 days in Azzizia. 

So what I want know is where am I musaafir in this whole trip and where am I muqeem? Do I regard Makkah and Azzizia as 1 or what?

Musaafir staying in different suburbs for few days each

Q: If I travel from Johannesburg to Durban for 20 days, but stay at different suburbs in Durban for a few days each, e.g. Musgrave, Sherwood, Overport, Clare Estate, Westville, etc.

1. Would I be a musafir?

2. What is considered in determining whether a place is considered as one or two different places? E.g. Is it based on the city name, suburb, physical break in buildings, etc?

Return journey being safr distance

Q: If a person travelled from place A to B with no intention of going anywhere else and it's not safr distance. However, on the return journey, he goes another route and stops at town C. Does he read qasr or full? The distance to C is NOT qasr distance from town A but qasr distance because of the roundabout way that he went there