Who was cain's wife?

The question of who Cain married has been on of the most popular questionsby creationist and evolutionist alike. In Genesis 4:17 is tells us that Cain had a wife who gave him a son. Since the only humans on the earth were ADAM, Eve, and their children, were did Cain get his wife? The only logical answer is his sister. Many people will argue however, that if Cain married his sister, that would be incest,a sin.Also, their children would have birth defects, as a brother and sister who had a child today probably would. Genetic defeormations are caused when both parents have same genetic "mistake".For example, say a perfect genetic code is ABCDEFGHIJ.Now , no one today has a perfect genetic code. So, if one parent has a code that's ABCDSFGXIJ, and the other parent has a code that's AZCDSFGHIJ, the child will have the genetic "mistake" that the S caused. Normally, the genetic codes will have different mistakes, so the corect part of one parents code will "override" the mistake in the other parent's. the colesr the parents are related, the more likely they will have the same gene "mistakes"' tus more chance of a deformation. Adam and Eve however were made perfect, iclundig perfect gene structures. So, all of their children inherited those perfect gene structures. It was after Adam & Eve sinned that bad mutations in the gene structures started. So there were no defomities to worry about. As for the laws of incest , there were none at this time. In fact, in Gen.20:12 you find that Abraham married his half-sister, so up to that time there was obviously nothing wrong with it.These laws witch were written by Moses, came 2.500 years later, when they were needed to protect humas due gene deterioration.

i'm not at expert of the bible but I think that when we are talking about Adam & Eve, we are not refering literally as 1 man & 1 woman but are symbolic figures of men and women created in likeness of God.

Caine and Luluwa (his twin sister) was born first...then Abel and Aklia (his twin sister) was born next. Caine and Aklia were to be married as was Abel and Luluwa. But since Abel was killed, Adam and Eve had Seth and gave him Luluwa.

The Bible did'nt tell us that God created only 4 people (Adam, Eve, Cain, Abel) that time. I think Adam and Eve have another children. So, one of Adam's daughter was Cain's wife.