Put on Purple for World Lupus Day on May 10! Whether it's a purple shirt, hat, sunglasses or more, wear your favorite purple gear to help make lupus visible, and support efforts to advance lupus ...

The question is: can you find them all? In the chaotic mix of colors and patterns, a few festival-goers are wearing purple sunglasses. Your task is to find all six pairs in less than nine seconds.

While we found a few images of other tech movers and shakers like Sheryl Sandberg and Susan Wojcicki wearing sunglasses, their shades proved tougher to identify. If anyone can tell us which brands ...