no you can not marry a half brother or sister or sibling no
No. You cannot marry a sibling in any state in the US.
Obviously siblings,1st cousin, 2nd cousin is forbidden.
If you mean, "Can a Florida notary perform a marriage ceremony for their sibling?", then yes.
it is legal anywere.
There is no such relationship as a "half-niece." Your niece is the daughter of your sibling or of the sibling of your spouse. No jurisdiction permits marriage between niece and uncle. You can't marry the daughter of the sibling of your spouse because you are already married to your spouse.
No! Muslim cannot marry his/her fourth cousin, let alone his/her sibling's child.
It is not legal to marry your sibling in Mexico or any State in the U.S. because it is considered immoral. If the two got married it is highly likely there would be something genetically wrong with their children.
No, A sibling is a brother or a sister, and as you can not marry a brother or a sister you can not divorce them.
In some places, you can marry anyone of the opposite sex who is not your parent, grandparent, child, grandchild or sibling. About half the US states also prohibit marriage fo first cousins.
No. Shikamaru and Ino have a sibling-type of bond. If Shikamaru were to marry anyone, it would probably be Temari.
Your mother's sister's son is your first cousin. In Canada and the United States, you are not allowed to marry your mother, your sibling or your child. However about half the jurisdictions in the US permit first cousins to marry.