Are there any Christians who can answer them?

In the Torah, God says that he chose the Jews as his own people, so why is he being racist?
In the Torah, there is a God who orders to kill babies, while in the Bible, there is a God who tells people to turn their right cheeks to the left, how is this possible?
In the Torah, there is a God who says to stone women who commit adultery to death, while in the Bible, there is a God who says let the one who is without sin cast the first stone. I don't understand, is God making a mockery of himself? After all, he was the one who ordered the stoning law in the first place?
How is Jesus both God and God's son? Is God his own son?
In the Bible, Jesus prays to God. Is God praying to himself?
In the Torah, it is written that prophets and kings had over 700 wives (for example, Solomon), so is polygamy legal in God's eyes?

Are there any Christians who can answer them?
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