Three thumbs up
This is one of those pictures that make you do a double-take. At first, it looks like a simple photograph of four friends hanging around. But what happens when you begin counting their hands? Four kids, nine hands. Whose thumbs-up hand appears between the third and fourth kid?
They assured that they were the only ones in the picture. But it would seem like one of them had a third arm hanging on the back. One easy explanation is that a fifth friend crouched behind them and had their thumb stand out on the back. What do you think?