Consider a pint jar filled with marbles. The problem is simple. We would like to have an accurate determination of the number of marbles in the jar. Assume we select four groups of 10 persons ...

However, the king was very mean, and he wickedly placed 2 black marbles in the jars and no blue marbles. The prisoner witnessed the king only putting 2 black marbles in the jars. If the jar was not ...

Here's what the puzzle asks you to do: You have two jars along with 50 red marbles and 50 blue marbles. Your task is to put all the marbles into the jars in such a way that if anyone was to ...

His goal was to fill the jar, and a few more, during his life. The marbles themselves weren’t the real treasure, however — the act of noticing each special moment was.

If you've ever been to a fair or a charity event, you'll probably have seen those games with jars filled with various items such as sweets or marbles. The idea of the game is to guess how many ...

The little round balls may seem a bit outdated compared to some current games, but there’s a community of collectors, artists ...