There are different sets of mental abilities that people of both genders have, and while some people will be very strong in some, they also can end up very weak in others. It is also the perception of the word "intelligent" that can also differ from person to person, or from ethnic group to ethnic group. As a result, you can have people who score very high in certain types of tests, yet if you throw them into an unusual situation, they won't have the slightest idea how to handle it.
The ability to come up with solutions to different problems is the perfect example of this. You can take someone with amazing abilities in mathematics or physics, but they might not be able to come up with a good solution on how to improve the functional efficiency of a business, group, or come up with other solutions outside their area of expertise. In this regard, their high intelligence is limited to a narrow area.
Being able to evaluate problems with systems of doing things may also be an area where people considered to be intelligent might have trouble, but at the same time they can handle very advanced scientific problems quickly and easily. A part of this is that people tend to either focus on specifics, or generalities. While some will really dig deep to find a detailed solution to a problem thrown at them, others will look at the situation from a "big picture" perspective and figure out a USE for what the detail oriented people come up with. Women and men both have the ability to fall into either group, but this idea that intelligence can be easily evaluated without looking at other mental strengths and weaknesses of the individual is what is flawed.
You can also break things down into areas such as memorization ability, the ability and speed to learn a new concept, and the ability to analyze and apply knowledge to various very different situations. If you take some Math majors from MIT and try to throw them into a situation that calls for a solution that does not call for a mathematical solution, would they be able to find the solution? Knowledge and Wisdom.....one is how much a person knows and can recall, and the other is the application of knowledge. One without the other tends to be fairly useless, but without wisdom, knowledge becomes useless. How many people do YOU consider to be idiots because they can't come up with good solutions to problems, even though they have very obvious mental strengths? It also requires a certain type of thinking to see systematic flaws in different areas, and it is unfortunate that many people don't understand this.
And finally, it takes the cooperation of DIFFERENT people with different mental strengths to come up with solutions to many things. The problem is that too many people fail to see their own weaknesses, and where they NEED the help of people with a very different way of approaching problem solving.