The British Museum currently has ownership of the marbles, but they belong to the world.
They're owned by SAV Credit Limited (who also own the Opus and Marbles cards).
He will have 13 blue marbles and 10 green marbles.
No. The name of a copyrighted game, such as Monopoly, would be proper, so that when it means the game, it is always written with a capital M. But a game such as marbles, baseball, catch, or hide-and-seek would be a common noun because nobody owns the name.
10 Green marbles, 13 Blue marbles.
He has 10 green marbles.
There could be 12 white marbles and 16 red marbles
at least 39 blue marbles
8:6
12 blue marbles
12 blue marbles
24 red marbles
If there are 20 red marbles and 40 blue marbles, the ratio of red to blue is 1 over 2. The number of white marbles does not matter.