Is there a general intelligence that can be measured by tests? If so, what might be some of the things that you could use as test items that would tap into this general form of intelligence that would not be overly affected by cultural matters? If not, why not?

Is there a general intelligence that can be measured by tests? If so, what might be some of the things that you could use as test items that would tap into this general form of intelligence that would not be overly affected by cultural matters? If not, why not?