People are struggling to figure out which train is going the wrong way in this viral brain teaser

Wang He/Getty Images Brain teasers, puzzles, and optical illusions are a dime a dozen online these days. Heathrow Express is getting in on the fun with a new train puzzle. Among 27 trains, one of the rail cars is facing the wrong way on the tracks. Keep reading to see which train is about to crash. People on the internet love to challenge themselves with viral puzzles and brain teasers. In a new puzzle created by Heathrow Express, a series of 27 different trains all appear to be traveling west. ...