According to Rav one may not live with a Nochri alone in a Chatzer or Mavui even if one is safe.

1.   ?    True.
2.   ?    False.
3.   ?    Mavuy is OK.
4.   ?    Chatzer is Ok.
5.   ?    Machlokes C&D.

If there is an inner Chatzer and an outer Chatzer, both made their own Eiruv but they are totally open one to the other what is the Din?

1.   ?    All can carry.
2.   ?    None can carry.
3.   ?    The inner one may carry
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.

If there is an inner Chatzer and an outer Chatzer,only the outer made their own Eiruv but they are totally open one to the other what is the Din?

1.   ?    All can carry.
2.   ?    None can carry.
3.   ?    The outer one may carry
4.   ?    Machlokes A&B.
5.   ?    Machlokes B&C.

If they made a joint Eruv placing the Eruv in one of the two Chatzeros, and one person forgot to participate the Eruv is Pasul.

1.   ?    True.
2.   ?    False.
3.   ?    כששכח א' מהחיצונה the inside ones are Mutar.
4.   ?    כששכח א' מהחיצונה the outside ones are Mutar.
5.   ?    Machlokes A&C.

What would be the Din if two people lived in the outer courtyard and only one in the inner one?

1.   ?    All Assur.
2.   ?    If the Yisroel is in the inside both are fine.
3.   ?    If the Nochri is in the inside both are fine.
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.

If there are 10 houses, one inside the other even the house outside the innermost one must Me'arev.

1.   ?    True.
2.   ?    False.
3.   ?    Safek.
4.   ?    It can not join.
5.   ?    Machlokes A&B.