Take a look at the picture below. According to the text, it’s a question given to 1st grade students in Hong Kong as part of an admissions test. I guess my question is, why does a first grader need to know this in under 20 seconds? Does it prove intelligence somehow? It took me longer than 20 seconds to figure it out. I’m 44 years old. I managed to graduate at the top of my class in high school. So what makes this question special or predictive of anything?