Any child that lives 30 days is viable.

1.   ?    True.
2.   ?    False.
3.   ?    Unless we are sure it is an 8 month baby.
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.

If we are unsure if a baby is seven or eight months we are not Mechalel Shabbos for its Bris.

1.   ?    True.
2.   ?    False.
3.   ?    Safek.
4.   ?    Teiku.
5.   ?    Machlokes B&C.

A healthy calf less then 7 days old that fell off the roof or was eaten by a lion. Do we consider it a Nefel?

1.   ?    Safek.
2.   ?    Yes.
3.   ?    No.
4.   ?    Machlokes, we say yes.
5.   ?    Machlokes, we say no.

A woman whose only baby died within thirty days, if her husband dies too - is obligated to perform Chalitzah.

1.   ?    True.
2.   ?    False.
3.   ?    Only if she wants to marry a Kohen.
4.   ?    Only in E.Y.
5.   ?    Machlokes B&C.

Let us say the woman in #4 was נתקדשה does she now need Chalitzah?

1.   ?    Yes.
2.   ?    No.
3.   ?    Yes,if engaged to a Yisroel no if engaged to a Cohen.
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.

אנדרוגינוס has Arechin.

1.   ?    His own Dinim.
2.   ?    Like a man.
3.   ?    Like a woman.
4.   ?    Not at all.
5.   ?    Whatever is cheapest.