Generally you can't make black, when you mix the primary colors you end up with a brown.
Red and black
pink, black, blue, indigo and red. Ignore the above: with paints or inks, you mix yellow and cyan to get green.
Yes
Just mix a lot of random colors.
Yes, enamel paints can be mixed.
Red and Green
Mix blue and red together.
No, it will not mix.
red and blue
int and ext paints should never be mixed. ext paints contains different elements in them then int paints.
Claude Monet used poppyseed oil paints and he rarely used black paint instead he used very dark purple for shadows, night skies etc All pure colors except black.
any arts and crafts store.