I am flat and white. You can draw all the colors of the rainbow on me. What am I?

Without me, letters are just a silent row. Solve the riddle → I have two blades and cut paper or string. What am I? Solve the riddle → It always points in the same direction, but has no legs of its own. What is it? Solve the riddle → Who answers you without you asking, but can only say what you've already said? Solve the riddle → I bring two sides together, with a sound and a pull. I keep your jacket snug around you. Solve the riddle →