Understanding the type of knots that are allowed to be opened on Shabbos.
More Important Information About a Fly Caught Between the Screen and Window;
Understanding the Difference Between the Melacha of Kotzair-קוֹצֵר (Reaping) and Gozez-גּוֹזֵז (Shearing);
additional various examples of צביעה באוכלים (coloring foods)