Posted on Mcdonald's UK Facebook page, the optical illusion is an innocent looking photo of vertical bars with the caption: "Tag a mate who should read between the lines". Yes, the answer is actually hidden between the lines.
Posted on Sunday, the post has over tons of reactions and comments of dazed and confused people finding it really hard to spot the answer.
Here's the optical illusion:
Tag a mate who should read between the lines... pic.twitter.com/LBaU8wjkdU— McDonald's UK (@McDonaldsUK) October 15, 2017
Stared at it long enough and couldn't find the answer? And are your eyes okay?
Also, is anyone else craving for some junk after this? *Hello, Mcdonald's?* Click for more trending news