If you haven't yet turned off yourÂ thinking organÂ for the summer, try today's Brain Game. We've offered a few number-series puzzles before, but this one may require a little lateral thinking (and, for some of you, a conversation with someone more over-the-hill).
What's the final number in this sequence?
6.5, 8, 10, 12, 16, ...
Click here for the answer.
Answer: 20. The numbers represent increasingly large sizes of individual-serving Coca-Cola bottles, from theÂ earliest and smallestÂ (6.5. oz glass) to the newest and largest (20 oz. plastic). Larger bottles contain more than one serving.