If the key was found in the city is the Eruv good?

1.   ?    Yes.
2.   ?    No.
3.   ?    Safek.
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.

If the Eruv rolls away before Shabbos, under which conditions will it become invalid?

1.   ?    Always good.
2.   ?    Never good.
3.   ?    If it rolls out of the Techum.
4.   ?    If it rolls 4 Amos or more out of the Techum.
5.   ?    It rolled uphill.

If one is in doubt whether his Eruv became Tamei before Shabbos or on Shabbos itself what is its Din?

1.   ?    Eruv is fine.
2.   ?    Chumros of Eruv being good or not. הרי זה חמר גמל
3.   ?    Eruv is no good.
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.

An Eruv that became burnt or Tamei is ________.

1.   ?    good
2.   ?    not good
3.   ?    Tamei is good burnt is not
4.   ?    Tamei is no good burnt is fine
5.   ?    Machlokes A&B.

One who is Tamei and does a Tevilas Safek is now what?

1.   ?    Tamei.
2.   ?    Tahor.
3.   ?    Tahor if it were בטומאה קלה .
4.   ?    Machlokes A&C.
5.   ?    Machlokes B&C.

If A touched B and the next morning he found B dead, A is _______ .

1.   ?    Tamei
2.   ?    Tahor
3.   ?    assumed to have caused the death.
4.   ?    Machlokes A&B.
5.   ?    Machlokes A&C.