Listen, we can’t claim to be mathmeticians. And we haven’t been able to use the Pythagorean theorem since closing our math textbooks. But we know what odd and even numbers are. Unfortunately, according to this terrifying Tumblr thread, there are many people who can’t say the same. Brace yourselves for some mind-boggling stupidity. And pray that schools are getting better. If the children are our future, we might be in trouble.