The amount of food required to establish eruv chatzerot/shituf mavoi - what happens if the food geta diminished on Shabbat?

Who is eligible/inelligible of taking over possession of the eruv for a joint alleyway?

The requirement for eruv chatzerot to be set up before bein hashmashot- application to Erev Pesach that falls on Shabbat- should the eruv be made of chametz or matzah?

The Rabbis were sometimes stricter than what is required by Torah law- paramaters and understanding behind this principle

Parameters of windows built into the wall in between properties/homes and application to the laws of eruv and yichud/prohibited seclusion

Joint eruv partnerships where one party forgets to contribute- does this nullify the partnership retroactively? Application to making berachot on behalf of another and making a mistake

The residence that is in a shul- is that considered a halachic residence- would it require the shul to have a mezuza?

The law of eruv for a student at the Rebbe's house- application to guests staying at a hotel, in a communal dining room, and scenario of hotel owner being Jewish

Defining the parameters of a place of residence in halacha regarding eiruv chatzerot, lighting chanuka candles, and mezuza

The halacha of renouncing domain rights on Shabbat- application to one who forgot to be mevatel/nullify befors the onset of the 6th hour on Erev Pesach