You are not related at all.
No.
Your mother-in-law's brother is your spouse's uncle, but is not related to you.
You are not related to the wife your mother's sister's husband's brother.
In-laws are not related.
Your brother's mother-in-law is not related to you, unless you also married one of her children.
Your mother's brother is your uncle and his wife is your aunt.
If your brother-in-law is the brother of your wife then his mother is your mother-in-law. If your brother-in-law is the husband of your sister, his mother is not related to you but is your sister's mother-in-law.
Your mother's brother is your uncle. Your father is his brother-in-law but he could also have other brothers-in-law. These would be men married to his other sisters, or the brothers of his wife. If they are men who married his other sisters, they are your uncles. If they are brothers of his wife, they are not related to you.
The English language does not consider your borther's mother-in-law to be related to you.
Your mother's brother is your uncle. Your uncle's brother-in-law is either the husband of his sister or the brother of his wife. The brother of your uncle's wife is not related to you. The husband of your uncle's sister is either your father, or the husband of another one of your mother's sisters and thus your uncle.
You are second cousins
You wife's uncle or "uncle by marriage".