If you want a real brain teaser look into the Mandela effect. It's about people remembering things as being different than they are.
Here in the USA we had a stream of never ending commercials in the 90's for a lottery company known as "Publishers Clearing House" where a well known comedian Ed McMahon went around door to door carrying a huge check for the winners. He would show up at their doorstep with the gigantic check and a bunch of balloons and say something like "I'm Ed McMahon with Publishers Clearing House and you've just won Ten Million Dollars!" The people would usually start freaking out as soon as they saw him become it was so well known, like a meme. If Ed McMahon showed up at your doorstep you knew immediately you had won the lottery.
Here's the weird part though- none of this ever happened. Lol. Ed McMahon never worked for Publishers clearing house and he never went around door to door carrying a giant check.
Another one on an international level: some people remember a famous statue "The Thinker" by Rodin as having his fist pressed against his forehead. Others remember him as having his fist pressed against his chin. But now his hand is pressed against his lips and is not even in a fist anymore. Which is odd because Rodin himself describes his status as having a fist:
"What makes my Thinker think is that he thinks not only with his brain, with his knitted brow, his distended nostrils and compressed lips, but with every muscle of his arms, back, and legs, with his clenched fist and gripping toes".
Then there are photos like this:
Where you have to ask what in the hell is going on?