Ha-Rav answers hundreds of text message questions a day! Here's a sample:
If You Can
Q: What is the source for the saying: "If you can, you are obligated"?
A: Officers' school of Tzahal.
Q: What about the saying: "If you are obligated, it is a sign that you are able to do so"?
A: The philosopher Emanuel Kant.
Those who Permit Drafting Women
Q: How is it possible that there are Rabbis who permit women to join Tzahal?
A: They are only a few, and they are not among the great Torah scholars, and the Halachah therefore does not follow them. The Chief Rabbinate of Israel forbids it.
Q: Is it permissible to run in a marathon where men and women run together?
A: G-d-forbid. It is completely immodest. See Kitzur Shulchan Aruch 152:8.
Mitzvah of Making Aliyah
Q: Is making Aliyah a Mitzvah? Why do Charedi Rabbis say it is not?
A: It is certainly a great Mitzvah. Many Charedi Rabbis say it is. For example, the Chazon Ish (Igrot Chazon Ish #175. Ha-Rav Yosef Shalom Elyashiv. Halichot Ve-Hanhagot – Bein Ha-Metzrim, p. 6. Ha-Rav Chaim Kanievski. In a letter he personally sent to me).
Wrist Watch for Men
Q: It is permissible for a man to wear a wrist watch, or is it forbidden on account of "Lo Yilbash" (the prohibition of men dressing like or appearing as women)?
A: It is permissible, since all men wear watches, including many G-d-fearing individuals (including Ha-Rav Yosef Shalom Elyashiv:
www.youtube.com/watch?v=rIGCpvdNq_I and Ha-Rav Ovadiah Yosef:
www.youtube.com/watch?v=XHcvuYAMr74. The Chazon Ish, however, prohibits it, as Ha-Rav Chaim Kanievski heard. Divrei Shi"ach Vol. 4, p. 27).
Q: When is it permissible to begin learning Biblical Criticism?
A: Never. It is full of lies, blasphemy and heresy. There is nothing to it. See Rambam, Hilchot Avodah Zarah 2:2-3.
Why was Man Created
Q: Why did Hashem create people? As game pieces to aggrandize His Name?
A: One who asks such a question is not worthy of an answer, rather he must first repent for such blasphemy. Learn Mesilat Yesharim.
Bar Mitzvah in Adar
Q: One who was born in Adar in a non-leap year, when is his Bar Mitzvah if it falls during a leap year?
A: Adar Bet (Rama, Orach Chaim 55:10).
Ha-Gaon Ha-Rav Ovadiah Yosef ztz"l
Q: I heard that there has not been a great Rabbi as Ha-Rav Ovadiah Yosef in the last 300 years, and others say since the time of the Rambam! Is this true?
A: Nonsense, this denigrates the great Rabbis throughout the generation. Ha-Rav Ovadiah ztz"l certainly would not be comfortable being honored through the degradation of great Torah scholars.
Blessing over the Smell of Coffee Beans
Q: Does one recite a blessing when smelling coffee beans?
A: No, since they were not planted for smelling (Commentary of Ha-Rav on Kitzur Shulchan Aruch 58:2).