The halacha that one should tear kriya if they are present when the soul leaves the body- this is compared to a Torah scroll that is burning which also requires tearing kriya

The source and laws of tearing ones clothes/kriya as part of the mourning process.

In what cases and circumstances may someone get married while they are in mourning of shiva or shloshim and afterward?

When does the mourning period begin? what if a family member will not be attending the burial?

The halachic principle of gadol habayis - when does shiva begin for the mourners when a body is flown overseas to be buried in Israel?

The importance of comforting mourners/nichum aveilim and whether we do so on Shabbat, Yom Tov and Chol Hamoed

The laws of shiva and shloshim when they come up against Shabbat and Yom Tov

The permission to get engaged on Chol Hamoed- different approaches to the concept of bashert and shidduchim

Haircuts for people in mourning

Should Torah be taught in a public setting or private setting? What about mitzvot in general?