Others are part of the mysteries of the internet, like a famous viral photo that suggested a group of friends were missing a pair of legs.
Here are 11 photos that will make you do a double-take — along with explanations of what’s really going on.
Something weird is going on with the cover for Ariana Grande’s album “My Everything.”
Grande’s second record had a cover of her sitting on a stool. But something’s off.
There’s no way she could sit on a stool like that.
As many other people have pointed out, there’s no way Grande could be sitting on a stool in the way she appears to be on the album cover. Comedian-writer Jesse McLaren even attempted to recreate the pose, inspiring other failed attempts.
A promotional image for Grande’s single “Focus” also seemed off. One of her hands looked disproportionately large.
Kendall Jenner seems to be happily hanging out with Hailey Baldwin and Kylie, right?
InStyle magazine’s Instagram photo of the three models hanging out together after the Golden Globes went viral for a reason, though.
Kendall’s leg went missing.
What might make you do a double-take is that Kendall’s leg seems to be gone.
Some eagle-eyed viewers noticed that the leg just seems to be missing because of the strange way Kendall twister her body. Because of the way her torso is facing the viewer, you expect her legs to be facing directly forward. In fact, they’re twisted to her right. You can see the top of her “missing” leg under her dress if you look closely.
Just six Green Bay Packers fans enjoying the big game, right?
This photo went viral on Reddit in late 2016. It looks relatively innocuous, right? Just six women on a couch?
Once again, a leg seems to be missing.
As many people noticed, while the photo has six women, there seem to be only 10 legs.
A closer look reveals what’s really going on.
The woman sitting in the middle is leaning her torso to her left and her head to the right. The legs to her right are actually hers.
On the end of the couch, the woman’s legs are also clear. She’s wearing black jeans.
The woman between them is also wearing black jeans. One of her legs is totally hidden behind the legs of the person at the end of the couch. You can see some of her other leg more easily if you adjust the photo’s lighting.
See? They all have legs.
Hundreds of thousands of people struggled to figure out what’s off about this photo.
There’s something amiss in the photo, which went viral on Imgur after it was uploaded by a user going by the name of what047. But not everyone can spot it.
Everyone in the background has the same face.
If you look at the people in the background instead of the women’s faces, you’ll notice that everyone has been photoshopped to have the same head of a man looking down.
Does this photo look like anything special to you?
The photo went viral when U.K. resident Arron Bevin posted it to Facebook. He said it took him “a good 5 minutes” to figure it out. Most people just see a brick wall at first.
Check out the cigar.
A closer look reveals a cigar wedged between the bricks, lining up with the wall’s shadows.
Babies shouldn’t be holding knives, right?
This seems like a bad idea.
Don’t worry, it’s Photoshopped.
It’s part of a series of photoshopped pictures from Stephen Crowley, who edited photos to make it look like his daughter is in dangerous situations.
He did it to troll his relatives. Since the images went viral, he’s used them to draw attention to the bone marrow registry. His daughter, Hannah, suffers from a condition that required a bone marrow transplant when she was less than a year old.
There’s a reason Lindsay Lohan deleted this Instagram post.
“My feet look red lol — had to take that out. Only real red is my hair,” she wrote in her now-deleted Instagram post.
Looks like someone did some Photoshop work.
As the curving wall indicates, it looks like the photos were altered to exaggerate certain features.
Here’s a hint: something similar is going on with this Kylie Jenner photo.
She takes a lot of selfies. What makes this one distinct?
Some weird curtain curving indicates more digital editing.
Jenner defending the photo, saying her curtain (and, I guess, the wall it hangs next to) naturally bends toward her body.
This is one of Taylor Swift’s most famous Instagram photos.
In it, she’s hanging out with the band Haim on a boat.
But fans noticed something was amiss.
The guardrail behind them curves a little bit, indicating Photoshop work.
This girl looks like she might be underwater.
When this photo was posted to Reddit in 2015, a debate raged over whether she was underwater.
But there’s are clues that reveals the truth.
Look at her ponytail and the splashing.
If she was really underwater, her ponytail would be wet and floating in the water.
Also, you can’t have splashes underwater.
The photo makes it look like she’s underwater because of a digital filter, which resembles the filtration of light over someone who’s actually underwater.