There are lots of frequently asked questions in Islam which have been answered by able scholars and taught persons who know in and out about Islam. We can provide you the references and questions in the following passages:
Who is Allah in Islam?
Allah means God. It is a personal name, which Allah calls Himself in the Koran. That is where we get it. It can also be found in an Aramaic copy of the Bible, and even Christian Arabs say Allah.
Is there a belief of trinity in Islam?
No. There is no belief of trinity in Islam; Allah is perfect.
Do we believe that Allah created the heavens and earth in 6 days?
Yes, but he did not rest on the seventh day, because he did not get tired. Allah is perfect. He does not get tired, nor does he sleep, eat, feel pain, or die for that matter.
Do we have free will if we follow Islam?
Yes, of course. Allah does not punish us for something we did not do on our own. But at the same time, we cannot do anything if Allah does not allow it. In other words nothing goes on in Allah's kingdom without his will.
What does it mean to believe in Allah?
It means to believe in Allah in total perfection, and uniqueness.
It means to believe in his Prophets because he sent them. We cannot pick and choose. A Muslim must believe in all the prophets of Allah.
It means to believe in the Angles. We must love them, we cannot hate an Angel, as Angel is considered as a spiritual being who helps out the prophets in spreading their messages.
It means to believe in Allah's predestination of good, and bad.
It means to believe in the last day: The Judgment Day.
Where is Allah?
Allah is the highest. He is high above all of his creations. He is ascended upon a Throne, which is much greater than the heavens and the earth. Allah is certainly the greatest, as he is the creative source of this entire universe.