Creativity is something that is known after the fact. Just as people have varying degrees of intelligence or height or weight, they possess varying degrees of creativity. Everyone is creative to some degree, although some people are more creative than others. There seems to be no particular relationship between creativity and intelligence. In fact, intelligence is by no means a predictor of creativity.
Intelligence is very different from creativity.
Intelligence is a predictable ability to store and process information in a linear manner and to come out with the solution to a problem quickly and accurately. Creativity, on the other hand, depends on the mind's ability to range over a broad area and come up with the unpredictable. Creativity is a divergent process and there is no knowing in advance what sort of idea will emerge. Most people have their most creative ideas away from the job environment. When asked, they will say that they do their best thinking while in the shower, while shaving, while in bed early in the morning or just before drifting off to sleep, in the car and when out walking.