Can you solve the green and red ball box logic puzzle? Here is the puzzle: There are three boxes containing two balls each. One box contains two red balls, one box contain two green balls, and one box has one green ball and one red ball. Each box is labeled incorrectly. How can you know what is in each box by only opening one box? Here's a hint to solving this puzzle: it is really important which box you choose to open. There is only box that you can open to find the answer. Can you solve this puzzle?