Answers:
1) cobalt blue, white;
2) cobalt blue and violet, white;
3) cobalt violet, cadmium yellow medium, white;
4) cobalt violet, cadmium yellow medium, white;
5) cobalt violet, cadmium yellow medium, white;
6) cobalt blue and violet, cadmium yellow medium, white;
7) cadmium yellow medium, vermilion, white;
8) cobalt violet, vermilion, white;
9) cobalt violet, vermilion, viridian, cadmium yellow medium, white;
10) vermilion, cobalt violet, white;
11) cadmium yellow medium, white.
