Ask the Tootsie Pop owl.
pink & green
According to Crayola's website, red and blue are kids' two favorite Crayola crayons.
According to crayola.com Blue and Cerulean which is a lighter blue check out the top 50 crayons here: http://www.crayola.com/colorcensus/americas_favorites/index.cfm
All colors of crayons melt at about the same temperature and at about the same rate, all things being equal. If the heat source is infrared (IR), then the darker ones will absorb more heat, and faster, and will melt first. Black should lead the pack under these circumstances.
Black and White
Two.
gray and black are the most two colors
What two colors may be used for the ground conductor (neutral)
I'm almost positive the two present day most commonly used colors are white and bright orange.
compares is less than.
The two colors most commonly used in landscape painting are blue and green. Blue is used to represent the sky and bodies of water, while green is used to depict foliage and vegetation.
The Four Color Theorem states that any map can be colored with at most four colors such that no two adjacent regions have the same color. This means the least amount of colors that can be used on a map is four.