Dice is plural, and common games have you roll two dice at a time. So you’re looking for a pair of pairs.
Earrings is plural, earring is the singular.
They should have said just the group of dice whose top sides sum to 14.
It's also a descriptive label we use when discussing numbered cubes. In the captcha's context, that's the meaning I've fixed in place - while I parse the rest of the text.
I'm seeing hints that the captcha also comes with a short time clock along with the usual locked-account punishment for failure-to-solve. Fast assumptions seem appropriate.