Car Talk show featured a knitting-related Puzzler. I was alerted to this by The Sweetie's family members, who listened to it on their way to meet us in Monterey.
I guess the clue is that the people are on a diet, and therefore their kitchen contains a scale. But of course, knitters know about weighing yarn! And we have a scale not because we are on a diet, but because we like to cook, sometimes with precision. (Sometimes without, but it's nice to be able to make that choice.) And sometimes I need to weigh my yarn.
The photo is of a tidepool. I was taking a picture of an iridescent crab. Do you see him? Yeah, neither do I. He was moving pretty fast.