@Rival
Since you like to ignore things, here it is again:
I have quite a few.
a) If Islam is God's perfected religion and God sent Jesus as a mere messenger, why is Christianity the world's dominant religion and has been nearly since its inception? Why would Allah do that?
Who says Jesus is Christian? Jesus preached the worship and submission of One God, that is the basis of Islam. Therefore, by that definition, he was in fact a Muslim. At no stage does he call himself a Christian, nor does he openly state he should be worshiped. Plus, it is estimated that within a few decades, Islam will overtake Christianity in sheer numbers but in terms of practice, Islam is already the world's largest religion.
b) How is the Qur'an perfect and universal if it can only be studied and properly understood in Arabic? Also, why does the oldest copy not match up to any known copy we have today?
No one said that it can't be studied in any other language but to fully understand anything in life, you have to get to the source, which is Arabic. That does not mean one can not be a Muslims or a very knowledgeable Muslim, without knowing Arabic. Anyway, most Muslims on the planet know how to, at the very least, read Arabic.
Oh and the second statement is purely a lie, unless you are asking out of confusion. One of the earlier versions of the Quran found in Birmingham university, dated to within 30 years of the life of Prophet Muhammad PBUH reads word for word the same as now. The vowel sounds are the only thing that are missing.
c) Why do all the earliest Mosques face Petra? And why does Petra fit the descriptions given in the Qur'an, not Mecca?
Petra? If these early mosques, as you call them, face any direction it would be modern day Jerusalem but the direction of the building is irrelevant, as the Qiblah was changed to Makkah and all prayer matts and directions in mosques would be facing there, not Jerusalem.
d) Provide me some non-Islamic evidence that Mecca existed in the time of Muhammad.
"Surprising as it may seem, not one map before 900 AD even mentions Mecca. This is 300 years after Muhammad’s death" http://www.academia.edu/1776803/The_Mecca_Question
You should read up on more history.
e) Why couldn't Allah preserve the original message and where were the supposed 24,000 messengers that were sent to everywhere? Evidence?
Allah states, time and time again, that every messenger before Muhammad PBUH was for a particular time, place and people. Their message was never supposed to last.
f) Why isn't the word 'Muslim' or 'Muhammad' used during the Arabian conquests? Why do these words only appear years after Muhammad?
Huh?
Thanks.
Your questions answered, what are your counter arguments if you have any?
If you don't we can move on to the next topic.