None. No number of gray tiles will make a white tile.
A lighter gray.
gray
Let's deal with a complete question. What are black, white and gray? Black is the absence of all color. White is the presence of all colors in equal amounts. Gray is made up in many ways. Each primary color and its opposite, black and white, or the combination of primary or secondary colors can make variations of gray.
No because mixing anything with white makes the colour lighter. Therefore if you mix grey and white, you would get a lighter grey. You cannot make black or white from anything else. Black mixed with white make grey.
Neutral
full gray
That would be gray matter.
White mortar is the same as gray except it has been bleached. White thinset is needed if you are using a light tile with light grout.
Their uniforms were gray. If needed...the Confederate flag had a red background with a blue X across it outlined in white. The uniforms of the Confederacy were gray. Their flag was red, white, and blue.
All of the cerebral cortex is gray matter as it composed of neuronal cell bodies which are not insulated with myelin.
It depends on what look you are going for. A white or beige grout would provide a nice contrast. Black or dark gray also looks nice if you prefer a more solid color look.
You would get a lighter but duller blue.
Yes. Silver is between gray and white.
Pumice can be white, gray, or even pink.
When you mix black and white paint, you get gray.
A lighter gray.
Usually great white sharks are white and gray and blue-gray.