Why is it called Shabbos “Hagodol”?

Why do we Toivel Keilim that were bought from a non-Jew? Why dont we Toivel the Keilim that we sold to the goy before Pesach? Why do we eat Milchigs (dairy) on Shavuos?
Based on Likutei Sichos Vol. 18 pages 363-370 and others

Why does everyone learn Pirkei Avos between Pesach and Shovuos and only “some” have the custom to learn them also in the summer months?
Based on Biurim Lepirkei Avos in several places (farbrengen of Shabbos parshas Nizovim Vayelech 5736) and others

Why did the angles think that they deserve the Torah more that humans?
Based on Likutei Sichos Vol. 18 pages 28-34 and others

Chof Menachem Av – The Rebbe’s father’s Yohrzeit. When the Rebbe asked me: And whom are you named after? And, Thank you for coming to the Yohrzeit.

What are the Roshei Teivos [acronym] of Elul? Who was Miriam Bas Bilga?   Click Here to View Video

Elul: when do we start blowing the Shofar? The first day or the second day of Rosh Chodesh elul?

Thanks but NO thanks and the birthday of the Baal Shem tov and the Alter Rebbe

The Paradox: On Rosh Hashono We Coronate Hashem But We Beseech Him for Our Personal Needs

What kind of Chanukiyah should be used?