12 Lectures: Melacha of Planting ■ Tzedaka and Non-Jews ■ a Sandik-Can You Change Your Mind ■ Mitzvah of Inviting Guests ■ Calling Off An Engagement ■ Lying to Keep What's Yours ■ Davening to a Malach ■ Celebrating Thanksgiving ■ The Ubiquitous Donor Plaque ■ Miracle Products and Other Chanukah Issues ■ Grandchildren in Halacha ■ Determining Date of Moshiach's Arrival