Interest

Q: What exactly is the definition of interest or riba? Will the return on investment for a business be considered as interest? Tell me briefly about interest.

Forex trading

Q: I do forex trade in Islamic account which is swap free and I don't take any leverage. For example if I deposit 10000 rupees in my account I will buy dollars from these rupees and will sell them when the price of the dollar increases. Is this profit permissible for me?

Using medication derived from humans

Q: Is it permissible to use medicine which is derived from humans? Like injecting something to stimulate certain cells/proteins and then getting from them? Perhaps it is not transplant which is prohibited.

(My mother had a fracture on her leg bone and it has not healed over 7 months so doctors are planning another surgery to fix it and will put bone formation stimulating drug at the site of fracture most likely derived from humans).

Birthday parties

Q: What do we do if my brother in law invited us for his wife's birthday. We already told them that we do not celebrate birthdays. His wife even asked us for a birthday gift. We asked if we could just do dinner and not call it a birthday party. I told my husband that I'm not going, so he said that I am being more bad to them. So what do you advise?

Marrying an adulteress

Q:

1. What is the meaning of the 3rd ayat of Surah Noor about the fornicator males are for the fornicator females?

2. I have come across that if a wife quarrels with her husband then her husbands hoors curse his wife. Is it true? What happens when it is his fault and he does wrong to the wife?

Does an adulteress have to marry an adulterer?

Q: I love a Muslim girl and wanted to marry her but she commited zina previously with someone else and she repented for that sin. Her argument is that she will only marry a zani male cause its written in the Quran. She can't find any Ayat and Hadees which mentions that the zaniya who repents can marry any muslim male.  So I want to know if you could please give me any ayat or hadees where it mention that a zaniya that repents can marry any muslim male.