I'd say look at photos of them from a front, and sideways view :)
Answer:
Red, Blue, and Yellow
Explanation:
Because when mixed, they create the Secondary Colors.
Yes. Potentially you can die. You would most likely become very ill as the bacteria will build up and when you eat it the bacteria will give you food poisoning symptoms (vomiting, diarrhea). If it is severe it can cause dehydration. It is dehydration that would cause organ failure and potentially death.