Islamic Weight and Measure

Q: 

1. Are all Prophets called Muslims and Mu’mins? 

2. Are all followers of Prophets including previous nations called Muslims and Mu’mins?

Q: How many grams of gold is half a dinar? Can you please tell me the amount in Pakistani rupees?

Q: What is Sunnat Muakkadah and Sunnat Ghair Muakkadah?

Q: Please explain how many kilometers are equal to 1 shar'ee meel (mile). It is mentioned in Beheshti Zewer under the ruling of tayammum. Generally in length; 1 mile = 1.6 km. Is there any diifernce between a shar'ee mile or and English mile? If yes please explain.

Q: 4 burd =16 farsakh; 1 farsakh = 3 miles, four burd = 16 x 3 = 48 miles. So 1 burd = 4 Farsakh.

What is one kilometre in miles? (1 kilometre = ? Miles). What is one mile in kilometres? (1 miles = ? Kilometre).

Q: According to Maalikis if najaasaat goes on your body then its ok to pray namaaz even if it is a lot more than a dirham. According to shafies and hanbalies if any najaasaat goes on your body then it is haraam to pray namaaz and according to hanafies if less than a dirham namaaz is fine. Is this correct and how big is a dirham 12 or 5.94cm or another measurement?

Q: How much kilos / grams is 20 Mithqaals equivalent to?

Q: How many gram's are they in one tola?