When traveling via airplane which direction should one pray? Assuming that due to conditions on the plane the proper direction cannot be ascertained.

What should one who is informed about the correct direction of the qiblah during a prayer?

Is it permissible to buy an apartment from the bank by instalments?

I have a question regarding the permissibility of becoming a law enforcement officer in this country that does no follow sharee 'ah. Is it haraam to be enforcing laws that have not been developed by our Creator Allaah and His holy Prophets (upon whom be peace)? Even if it means enforcing laws on non-Muslims?

Partciluarly, is it permissible to enforce a law like punishing someone for speeding on the highway? What about allowing someone to drink alcohol if he is over 21 but not if he is under 21? Even though this is not Islamic, should a Muslim allow such behaviour among non-Muslims? Of course, Muslims will be accountable for these haraam actions in the Hereafter, but is it okay to let non-Muslims do this?

What is the ruling on mixing with kaafirs and dealing with them kindly, hoping that they will become Muslim?

Can muslims accept donations from non-muslims to use in Islamic Cause?

If a man was praying the sunnah of the fajr [prayer], or other than it, and whilst doing so the [iqaamah for the obligatory] prayer was called, is he required to [promptly] terminate his prayer in order to join the imaam [and congregation] in [the obligatory] prayer, or should he complete his prayer [first]?

If a person slept through Fajr prayer, will Allaah reward him for the remainder of the prayers on that day, or not? And if he prays it after he wakes up, will it be accepted from him?

A Sikh friend of mine was given some literature to read. While reading it, he raised this objection: “You say that Allah speaks to the prophets and through these special people He sent a universal way of life for all mankind. The question is, why is such an important way of life prescribed in this one particular language [Arabic], which is used only in one particular geographic location? Why could not that Almighty Allah create one universal language for all of mankind so that all people could benefit from that equally? Arabic Qur'an is certainly beneficial for the Arabs only.”

Are Christian and Jewish lay people the same as their clergy and religious scholars? Are they also unbelievers, even though they are People of the Book and do not have the knowledge that their religious leaders have? Are they condemned to Hell for their not believing in Prophet Muhammad (peace be upon him)?

I am a South African who used to study in the United States. When I was studying, I borrowed $6000 US from another South African. We are both back in South Africa now, and it is more convenient for both of us if I pay him back I South African rands. Is this allowed?
 

Dear scholars, my question relates to changing name, I mean, is it necessary for newly converts to Islam to change their names or they can keep their Christian or any previous names?