Reb Velvel develops two major approaches as to how to formulate the mitzvah to recline at the Seder

Reb Velvel explains the role of poor man's bread (Lechem Oni) in Matzah 

Reb Velvel explains the nature of chametz which is prohibited rabbinically on Erev Pesach 

Reb Velvel explains the status of feeding a sick person on Yom Kippur, including a very lenient ruling of his father Reb Chaim. 

Reb Velvel explains when the obligation of a courtyard Eruv (Chatzerot) applies 

Reb Velvel explains why it's still forbidden to work after Shabbat ends until one makes Havdalah 

Reb Velvel explains why we don't make a blessing on a Minhag (custom), only a full commandment.

Reb Velvel differentiates between the writing of a mezuzah vs. writing tefillin 

Reb Velvel analyzes the status of the tefillin knots which form the letters dalet and yud - whether it's a letter or a shape

Reb Velvel analyzes the distinction between turning an object into an idol vs. disqualifying it from being used as a sacrifice because it was worshiped.