My question are to Jehovah Witnesses... do you believe that Jesus is the Messiah? Just Asking..?

Do Jevhoah Witnesses believe Christ is the Messiah that God sent into the world and furthermore, do they believe God is Jesus or vise versa, Jesus is God. I need detail also, do they believe in the Holy Trinity, for example does God have a spirit that he came down in the flesh to die for our sins? If not, how do men get salvation? Was there really use for a New Covenant? Or is the Old Convenant/Old Testament the only true commandments? Just asking, so no need to bash me if you feel the need to just need to know...