Modern theory says we have "multiple intelligences" -- different kinds of smarts for different kinds of thinking. For example, some brilliant people are bad at math. And some brilliant people can't understand music.
This IQ test is NOT a measure of intelligence. It's a relative IQ test, measuring in 20 short questions how your brain likes to think, on 4 variables of my choice. Your percentages represent not how good you are, but rather what approach you take to thinking.
Your 4 scores will total 100%, assuming you don't skip any questions. A higher score in one variable means you use that type of thinking more.