Yes. There is nothing wrong with it and it is actually relatively common.
Yes as long as they have no biological relation to you.
Yes, there is no legal relationship between you.
Sure, it's possible, just be sure it is God's plan for your life before you jump into marriage!
Sometimes identical twins to marry identical twins. It's called a quateranary marriage.
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yes you can marry because she is your cosin sister
Yes. You can marry your LIVE wife's sister if you want to, provided that you are both free to marry.
Yes, if his wife is dead or divorced he could marry her sister.
Your cousin's sister is also your cousin. In some places it is legal to marry your cousin.
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This is legal for a man to marry his widow's sister in France.
Yes, they did marry.
No, it is illegal to marry your sister anywhere in the world.
A sister in law, by definition, is the sister of your wife. As long as you aren't still married to your wife, it would be legal. A sister-in-law can also be your brother's wife. You can marry her provided she is not still married to your brother.
It is legal for a man in France to marry his widow's sister. These people are not related and there is no problem with marrying.
You can marry your sister in law in Georgia. The law only addresses marrying close relatives and your wife's sister would not fall into that category.