Thank you so much for your reply!

And welcome to the forum.
So what exactly is a prophet? Is it someone who was sent by God to relay the message or is it someone who becomes spiritually aware and realizes God somehow? So someone who was sent by God could be someone like Jesus Christ. Although I don't know much about Christianity either. But as far as I know, Jesus claimed to be son of God.
A Prophet (in Islam) is someone who was sent by God Himself to guide the people to the correct path. This does not mean that God talks to the prophet directly, but he sends and Angel to him, or by other means.
Someone who 'realises' God (what ever that means?:?) is
not a prophet.
The Islamic belief is that Jesus was a
prophet of God, not the Son of God, and we believe he never claimed to be the Son of God at all. This is a lie that was attributed to him.
Please correct me if I am wrong. Mohammad Sahib was enlightened in childhood. Is this correct? When he was a child, he used wonder about God. Some times, he wondered if God was in a star and finally he was enlightened. So in that respect, Mohammad Sahib would be an example of a prophet who was enlightened later in life.
I do not know who that is... But he is not a prophet because he was not sent by God.
Although this has been discussed already, this is true that baani (writings of spiritual people) included in Guru Granth Sahib was actually written by the saints and gurus themselves, which is not true in case of some other religion.
All that means is that you can guarantee that your texts are really what the Guru taught. This does not mean that it is automatically the word of God though!
Yes this is true that people, regardless how close they were close to the prophets could have never ever known what exactly prophets would have written because in order for them to write exactly what prophets would have written, they would have to be in the same spiritual state as the prophets themselves and they were in the same spiritual state as the prophets, they would have been very aware of God and would also be prophets themselves.
That is not true. The Quran was revealed to Prophet Muhammad (pbuh).
He was not the author of the Quran. God was. Prophet Muhammad pbuh has no right to add anything to it! And he never did.
That said, verses would be revealed to the prophet, and he would read them out and teach them to the Muslims
exactly as he was taught it, word for word. There is no need for some kind of spiritual state. All they needed was to understand the Arabic language.
Although I am not speaking on behalf of anybody else, I don't see for any non-Muslim to accept or reject anything in Quran. I personally don't even know what's written in Quran. I personally simply believe in truth - the whole truth and nothing but truth. I personally don't care where the truth comes. Whether it comes from Chrisitianity, Islam, Hinduism, Sikhism, Buddhism or something non-religious.
Fair enough.... but only one of them can be the
whole truth.
There is only one God and there is one truth and that truth is the only true religion.
Correct.
Could you please advise how Sikh teachings clash with Muslim teachings? I am not aware of any. If you can come up with something that clashes, then we can determine which makes better sense logically.
There are many:
1. The Prophet Muhammad was the
last prophet to be sent to mankind. The Quran is the last Holy Book to be sent to mankind. How then can sikhism be a real religion when God has already told us through Prophet Muhammad that there will be no more prophets?
2. The reject of Paradise and Hell. This is an absolutely fundamental part of Islam. In fact, any person who calls himself a Muslim but does not believe in Paradise and Hell is automatically a non-Muslim. Sikhism does not believe in either of the two. How can Sikhism be a true religion and acknowledge that Paradise and Hell do not exist and at the same time claim that Moses, Jesus and Muhammad are all prophets of God, and yet all three of these prophets taught that Paradise and Hell are REAL?
That's all I can think of for now...
What I really wanna know is: if there is only one God, why are there so many different religions preaching entirely differently and still they all claim to know God?
Simply because their claims are not true. I can't talk to you about Sikhism or Hinduism or any other religion, expect for Judaism, Christianity and Islam.
The Islamic teaching is that God sent Prophet's to mankind since the start of mankind. The first human, Adam, was also a prophet. There have been literally thousands of prophets sent, and they all taught the same thing: There is only ONE God, He created us so that we may worship Him, and that when we die we will be raised up again on the Day of Judgement and God will judge between us. Those who believed in their prophets and did good deeds will go to paradise, while those while those who disbelieved in them will go to hell. Of course there is a lot more to it than that, but that is just an brief overview. The message (which I just mentioned) was the same with each prophet, was the same, but the law that each prophet had was different. So some prophets made some things illegal, while others made them legal.
Judiasm is the religion based on the Prophet Moses, and Christianity is based on the Prophet Jesus. What the prophets originally taught was the true word of God and how ever followed them was a believer and following the correct religion
of that time. However, over time, the message that these prophets brought were corrupted, and people no longer knew what was taught by the prophets and what was fake and added by men later on. When ever this happens, a new messenger is sent to remind the people of the truth.
Also, when a new prophet comes, you
have to follow him. It doesn't matter if you follow one prophet and reject the others. For example, Jew believe in Moses right? So that means they should go to paradise based on what I said. BUT they reject Jesus and Muhammad. You can't just pick and choose which prophet you want to follow- you have to follow the one who comes in your life time (that is, if one comes). If you reject one prophet it is like you have rejected them all and you will go to hell forever for that crime.
So, both Moses and Jesus had their message changed and corrupted, and so Prophet Muhammad was sent. The special thing about him is that he was sent to ALL of mankind, for the the rest of the time left on earth. He is the LAST prophet, there will be none after him. His message, therefore, will never be corrupted, because if it did, we will need a new prophet.
So, although you have these three main religions, only one of them is the full truth: Islam. Christianity and Judaism are only semi-true because they have had things added to them.
By the way, I understand that you think Bible has been tampered with and that's why don't want to be Christian. Then why not try to find out what truly was originally written in Bible and try following that?
Number 1: What is called the bible today is NOT what Holy Book that was revealed to Jesus. This bible was written by
men (and Christians admit this also). However Christians believe God inspired the men to write it, but Muslims reject this claim. God only send Holy Books to Prophets. So this thing called the Bible is more of an (inaccurate) historical record.
Number 2: We can not find the original Book revealed to Jesus, it was lost.
Numerb 3: The Holy Quran abrogates everything that was sent before it. Even if we have the original bible, we can only read it, but not follow its laws. We must follow the laws of the Quran, because we live in the time of Muhammad, not Jesus.
I hope that helps! Sorry it was so long.

hew