Qasar Salaah and Full Salaah

Musaafir mistakenly performing four rakaats fardh salaah

Q: I'm little confused regarding salah which we performed during our stay in Makkah and hajj. We followed one book which had mentioned that your stay in Makkah, if less than 15 days then you should perform qasar salah. Also during hajj days if your stay till 7th Zil haj is less than 15 days you need to do qasar in hajj.

1. We started from India on 4th Aug 4pm and reached our hotel on 5th 00:30. As per booking, we calculated our stay as 14 days (5 to 18) and we had intention that on 18th night or 19th morning we will leave for Mina. We left Mina 19th morning 03:00am. We offered qasar all in Makkah and during haj. Is it correct?

2. How are 15 days calculated. Is it 24 hours *15 days?

3. If some musafir prays alone and recites all 4 rakats and after 2 days remembers he is musafir and then corrects his salah to 2 rakats. What is ruling on it?

Musaafir performing qasar salaah when staying in a town for less than 15 days

Q: I traveled from Pakistan to Stretford UK where I intended to stay for less than 15 days and during these days will go for a day to Peterborough and come back and then after two days will go for two days to London and come back. Then I will move 15 miles away to Hazel Grove town and will stay there for 20 days. My question is that should I pray qasar salah or otherwise?

Visiting one's home country

Q: I was born in Sylhet, Bangladesh and came to the UK at the age of 6. I am currently a permanent resident of UK and only visit my family and friends in Bangladesh after a few years. I still have a family house in Bangladesh but no personal belongings. When I visit Bangladesh, I stay in this house.

I am travelling to Sylhet, Bangladesh for 10 days. Will I be a musafir there or Muqeem? 

Performing qasar salaah when studying safar distance from home

Q: I take Pietermaritzburg as my home (Wathne Asli), however due to me studying and being married, I live in Isipingo Beach and take Isipingo as my Wathne Iqaamat. If I stay in Isipingo for less than 15 days will I be a musaafir in Isipingo? Doesَ my wife have to follow my intention as taking Pietermaritzburg as my Wathne Asli and Isipingo as my Wathne Iqaamat, or can she take Isipingo as her Wathne Asli?