A lecture series by Dr. Joe Regnestein covers "Everything You Always Wanted to Know about Kosher and Halal ... But Were Afraid to Ask" at the UA Hillel (1245 E. Second St.) at 7 p.m., Thursday, Feb. 3. Free. "How the Oreo Cookie Became Kosher" is at 7:30 p.m., Friday, Feb. 4; and "The New. . .Kosher: The Ethical Treatment of Workers and Animals in Food Processing" is at noon, Saturday, Feb. 5, both at Temple Emanu-El (225 N. Country Club Road). Free. Bring a dairy or vegetarian dish to share Feb. 5. Call for more information.