What is the ruling on a person who isn`t able to fast due to old age, or an incurable disease ?
Paying the ransom is due on such a person, and that is giving a Mod(600 grams) of wheat, or rice, or the price of that amount to a needy Muslim for each missed fasting day.
Is a wife considered divorced if her husband refused to go to bed with her(for sexual intercourse) for two months?
A wife doesn`t get divorced no matter for how long her husband refuses to have sex with her, and she had better go to court.
What is the ruling on singing and listening to it while accompanied and unaccompanied by musical instruments?
Singing and listening to it unaccompanied by musical instruments is permissible as long as it isn`t practiced as a profession and is done by a man to other men, or a woman to other women with maintaining that no temptations are involved. The words of the song should be Islamic, and if temptation was likely to happen, then the singing becomes definitely forbidden. Temptation here means: whatever leads to committing a sin. In Islamic Sharia, singing accompanied by musical instruments such as the lute and the like is forbidden, and listening to it as well. The reason behind that is the fact that the musical instrument itself is forbidden. However, striking the tambourine and singing Islamic songs are permissible in weddings, circumcisions and the like.
Is Zakah(obligatory charity) due on the money saved for marriage?
Zakah is due on the money saved for marriage if it reached the Nissab(minimum amount liable for Zakah), and a whole lunar year had lapsed over possessing it.