Nikaah & Marriage Issues

Q: As per the need of the time of those days, the devaluation of money is going so fast and islaam made the nisaab of zakat in gold and silver. According to this if we make the transactions of mahr in Nikaah in gold, will it be valid shariah or not. In the case of divorce I find a man divorced his wife after 10 year's of the nikah, that time the Mehar was Rs. 1125/= that's also not paid at the time of nikah. With the papers of divorce, he sent the same amount to her after 10 years. So if they made the transaction in gold, the divorced woman would have something to support her for the future.

Q: Is it possible to take my sister-in-law for hajj with me? She is a widow and the Quran says that we can't marry two sisters. Also we find that Hazrat Usmaan (Radiyallahu Anhu) got married to two daughters of Rasulullah (Sallallahu Alayhi Wasallam). Please confirm.

Q: A girl is engaged to a guy, her nikaah will be after few months. The guy's sister is close friend of the girl. So is there anything wrong if the girl asks her friend who is the guy's sister to convey him some deeni demands that she has from her future husband? (like the girl wants her husband to get involved in work of tableegh and wear Islamic dresses and few other demands). Similarly, is there anything wrong if she put forth these demands to her future husband via his sister?

Q: A girl is engaged and she chats with her sister in-law via whatsapp. Is it allowed for the girl's fiance to see the chat if the girl has messaged something related to her fiance? Like the girl has a few Deeni demands from her future husband so she messages the demands to her sister in-law. So can the fiance read the messages directly from his sister's phone?

Q: My question is that I have been married since 2004. She is often busy with kids and we don't find time to have pleasures with each other. Masturbation is not allowed in Islam but if your wife lets you masturbate with her own hands is it allowed. Secondlly, after having long intervals is it allowed to masturbate with using hands like while taking shower throw water on penis to feel satisfied or relaxed and to avoid wrong doings outside?

Q: A girl is engaged and her nikah will be after few months. Her mother in-law telephones her and asks her khair khabar once in a while she also telephones her. Is there anything wrong in telephoning one's in-laws before nikaah? Please note that she doesn't speak with father in-law or her fiance as they are not halaal for her yet. She just speaks with her mother in-law and sister in-law.

Q: Is there any limit in loving one's husband? Me and my husband are trying our best to abide by the rules of Shar'iah, we remind each other about ahkaamat of Allah taala. So alhmdulillah our relationship is filled with love. So we want to express our love for each other. So can I say to my husband I love you more than anything / you are my everything/ you are my world/my heart is perfect because you are inside /my day and night is filled with your thoughts and so on? Will it be like I am telling I love him more than Allah and his messenger? But in my heart it is not like that, even though I love my husband intensely, Alhmdulillah I love Allah and his Rasul (Sallallahu Alayhi Wasallam) and I don't agree with anyone where ahkamat of shariah will be broken if I do so, be it my beloved husband.

Q: Is oral sex allowed with a covering? If a husband insists on his wife to perform such an act and she refuses, will she be disobeying her husband? What should she do?