Look around you. Almost every invention is made by a man. Compare the list of inventions by a man and a woman and you will see a massive gap.
I'm only basing this off of my grade and sixth grade (I'm fifth). Most kids in the advanced level math class in fifth grade are guys. I generally think guys are smarter than girls in grade school. I'm a grade ahead in math, and I had to take a test to get in. The boy that was also applying in my grade got about 20% higher than me. We both got in though. Just because guys are better at MOST school things doesn't mean females aren't smart either!
Females are smarter, these studies prove it. http://www.sciencedaily.com/releases/2014/04/140429104957.htm http://www.sciencedaily.com/releases/2015/01/150126125015.htm
Males, however, are much stronger on average. Females tend to use more complex and/or logical thinking.
In general, it doesn't mean females are smart and males are dumbphucks. Einstein is definitely smarter than some female McDonalds worker.
Females are smarter in general. There are more male geniuses, but that's partially because of social reasons.