Wearing purdah

Q: Is there a specified age for a female to wear purdah? Is it ok for a female at the age of 50 to start doning the niqaab. What are the stipulated laws and requirements necessary to adhere and heed to when one is in niqaab? Did she sin for all the years by not wearing purdah even though she always wore hijaab. If it was a sin not wearing purdah how does she compensate for the sin? Is it permissible for a female in purdah to use public transport? Is it permissible for a female in purdah to walk on a public road. Does she have to wear gloves? I will be extremely grateful for your help as it is of profound importance.

Premarital relationship

Q: A boy loves me a lot. He proposed for me and I said that I will tell my mother and afterwards my mother will decide. He told my mother that he loves me and wants to marry me. Now the main problems stands here. I am too young for marriage so is he. He doesn't have any job. He is still studying. After he told my mother, then we started to talk to each other and as time passed we shared a lot of things. It has been nine months now and he loves me since 2011. Now suddenly I realized that this is haram. I know I did wrong but I have realized it. Now the main problem is that I promised him that I wont leave him but I am a Muslim so is he. I just want to stop talking to him. I want him to wait for me till I am old enough and he is capable enough to raise a family and during this time period he keeps no contact with me. This is difficult for me as well as for him, but he doesn't understand. He wants a haram relation and wants to meet me alone and I don't want that. I love him a lot and I don't want to say yes or no. Please help me. What should I do?

Inheritance

Q: A Sunni ruler from a princely state in India who performed more than four marriages. In order to get away from the Income Tax Department a few years before he died he gave an affidavit to the government that his legally wedded wives were only four. The other Ladies whom he had children with lived with him throughout their lives. The children were his own. The ruler provided them with everything. Not only his children but he also recognised his grandchildren by accepting them many a times and provided them with everything. Will the share of inheritance for children from the fifth marriage or the sixth marriage whom he accepted and acknowledged throughout his life time as his sons and daughters different from the children's share of his first four marriages or will his inheritance be distributed equally among all the heirs.