She needed one missing car part, but its strange marking turned a simple search into a baffling mystery.
The woman could remember only three characters, “710,” and even drawing the cap seemed to offer no clear answer.
Then someone flipped her sketch upside down, and the clue she had trusted suddenly pointed toward a wonderfully unexpected and simple expl…
The woman wasn’t trying to solve an automotive riddle. She just wanted a replacement cap and couldn’t remember its name.
What she did recall was a marking that looked like “710.” Hoping that a picture would help, she sketched the part. The breakthrough came when someone rotated her drawing: viewed the other way around, those supposed numbers spelled “OIL.” She had been searching for an oil cap all along. The information was there; it simply needed turning around.
