Kollel Iyun Hadaf, Jerusalem
1) Shamai holds 'Kol ha'Nashim, Dayan Sha'atan'.
(a) What does this mean?2)
(a) What is a woman who has a Veses, and how does her Din differ from that of a woman who does not?A woman who does not have a Veses, is Temei'ah twenty-four hours in retrospect.
(c) From when does she begin counting her days of Nidus?3) The first reason given to explain Shamai's Din, is because a woman has a Chezkas Taharah.
What is Hillel's counter-argument?
4) By Dam Nidus, the blood is now there, and it could possibly have dripped slowly, in a way that was not noticeable - just like by a Mikveh. In that case, the Din in our Mishnah differs from the Din by a Mikveh that was found to be short of forty Sa'ah, and which is Tamei retroactively (not like Shamai) and not be'Safek, but definitely Tamei (not like Hillel, who holds that, by Nidah, she is only Safek Temei'ah)?
(a) What is the difference whether it is Safek Tamei or Vaday Tamei?5)
(a) What is the Din (either according to Rebbi Yochanan or according to Rebbi Yehoshua ben Levi) if someone discovers that the barrel containing the wine which he was using as Ma'asros on all his other wine, has turned sour (according to Rebbi, who holds that wine and wine-vinegar are two different species)?