5. Do Muslims believe he performed miracles? YES
Muslims, like Christians believe Jesus performed miracles. But these were performed by the will and permission of God, Who has power and control over all things.
"Then will God say: ‘O Jesus the son of Mary! recount My favor to you and to your mother. Behold! I strengthened you with the Holy Spirit (the angel Gabriel) so that you did speak to the people in childhood and in maturity. Behold! I taught you the Book and Wisdom, the Law and the Gospel. And behold: you make out of clay, as it were, the figure of a bird, by My leave, and you breathe into it, and it becomes a bird by My leave, and you heal those born blind, and the lepers by My leave. And behold! you bring forth the dead by My leave. And behold! I did restrain the children of Israel from (violence to you) when you did show them the Clear Signs, and the unbelievers among them said: ‘This is nothing but evident magic' (5:110).
6. Do Muslims believe in the Trinity? NO
Muslims believe in the Absolute Oneness of God, Who is a Supreme Being free of human limitations, needs and wants. He has no partners in His Divinity. He is the Creator of everything and is completely separate from His creation.
God says in the Quran regarding the Trinity:
"People of the Book (Jews and Christians)! Do not exceed the limits in your religion, and attribute to God nothing except the truth. The Messiah, Jesus, son of Mary, was only a Messenger of God, and His command that He conveyed unto Mary, and a spirit from Him. So believe in God and in His Messengers, and do not say: ‘God is a Trinity.' Give up this assertion; it would be better for you. God is indeed just One God. Far be it from His glory that He should have a son. To Him belongs all that is in the heavens and in the earth. God is sufficient for a guardian" (Quran 4:171).