Understanding the type of knots that are allowed to be opened on Shabbos.
CORRECTION: Putting Salt into Cholent, Soup, Etc., and Pieces of Radish, Onion, Garlic, Etc.: Eating Right Away;
Is There a Problem with Flowing Liquids and Reference to Memchaik? (e.g., Baby Oil, Sanitizers, Liquid Hand Creams, Vitamin E Oil, etc.);