Is bible perfect?

I strongly feel that the bible was written by human beings with their own ideas, imagination and situation. I can see lot of contoversies - kindly refer the website www.skepticsannotatedbible.com. For an example, the son of God refered to Jesus, adam etc. In some areas bible tells that all human beings are sinners and in some verses it is saying that no. If the Bible is a word of God, then why there are lot of imperfect statements. From the website, it is clearly shown that Bible was not a word of God. It is the collection of books written by different authors, followers and other religious people.