In Quran, God already answer that..
(Surat Al-`Ankabūt 29:2-3)

Do the people think that they will be left to say, "We believe" and they will not be tried?
But We have certainly tried those before them, and Allah will surely make evident those who are truthful, and He will surely make evident the liars.

I found Q&A answering your question. Somebody asking similar question like you. Please watch this. This wil answer
1) purpose of creation
2) why we been tested
http://www.youtube.com/watch?v=zKh0d7MjmbQ

Yes, the Anti Christ and Dajjal are the same thing. 

Atheism is a religion, deal with it.

Muhammad was born during the common era in the 500's. He was born hundreds of years after the bible and possibly thousands for the Torah. Why would you find his names in those books? Its the other way around. The Qur' an comes after the Torah and Bible in lineage and structure. 

Christianity - Anti Christ, Islam - Dajjal
Christianity - Hog and Magog, Islam - Yajooj and Majooj

God protected the Kaaba for mankind not for himself. The Kaaba was built by the Abrahamic prophet Abraham.

God has given human beings free will, and due to this we are often the ones who take away mercy. If you consider the majority of the worlds issues, they are due to human stupidity, greed and selfishness. By nature we are destructive, argumentative and competitive. According to many religions, not just Islam, God had shown his mercy by giving us bounties and rewards, and we have constantly thrown it back in his face. The question asked should be, "if there is a God, do we deserve his mercy?"

I am not asking about the purpose of life. I am asking why Allah calls himself the most merciful. A grand gesture of mercy would've been not creating the world we live in at all. But Allah did create this merciless world. The purpose you guys are talking about makes the matter even worse. It also leads to another question: Why did Allah need to create and test his creatures? 

This raises more questions than it answers. Allah created naturally destructive creatures. If Allah is merciful, he should forgive us all for acting in our nature. The answer to your question would be Yes! Naturally destructive humans deserve his mercy. 

obiously you not even watch this.. please watch 1st

http://www.youtube.com/watch?v=zKh0d7MjmbQ

Don´t do it man, just do not do it. Edit this thread when there is still time.

I did and it confused me. My question was different than the one being asked but let's discuss what this guy is saying. He says "before we came in this world god asked us who would like to become a human being?" I don't remember being asked. I am being serious here. I'd rather be an angel with no freewil. Just like the guy in the vidoe is describing them.

After that he quotes the quran and the Surah mentioned is shown on the screen. I didn't understand what he exactly said. http://quran.com/33/72 is this the same Surah and he was paraphrasing? "Indeed, we offered the Trust to the heavens and the earth and the mountains, and they declined to bear it and feared it; but man [undertake to] bear it. Indeed, he was unjust and ignorant." Who is the man referred to here ? All humans?