It reminds me of the "Jewish problems". Math problems that look simple, with a simple solution, but are actually really hard. It was used in the Soviet Union to

It reminds me of the "Jewish problems". Math problems that look simple, with a simple solution, but are actually really hard. It was used in the Soviet Union to deny access to universities for "undesirable" people like Jews. They were given these "simple" tests and their failure was used to justify their rejection.