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

Siyum on Masechte Nazir which is discussed in Parshas Naso
Based on Likutei Sichos Volume 18 Pages 63-75

Will the Real Meraglim Please Stand Up?
Based on Likutei Sichos Vol. 33 pg. 78-84, Sefer Hasichos 5747 pg. 448-461 and others.

Will the real Korach please stand up?
Based on Likutei Sichos Vol. 18 pg. 187-195, Sefer Hasichos 5748 pages 499-511 and others

Will the real Moshiach please stand up? (part 1)
Based on Likutei Sichos Vol. 18 pages 271-284 and others

Moshe Rabbeinu didn’t know the answer?!
Based on Likutei Sichos Vol. 13 pages 93-98 and others

Why did Moshe Rabeinu split the tribe of Menashe, half in Eretz Yisroel and half on the other side of the Yarden?

Is it Correct to Translate the Torah?

Excuse me, did you put on Tefillin today? What does the word “Totafos” mean? Why are “Tefillin” called “Totafos”?