As previously stated, online tests are not valid and will tell you very little about your actual IQ. And yes, there is a correlation between high IQ and MI, a strong correlation actually. But I do not think people with MI have higher IQs. People with very high IQs are however much more likely to have MIs. And if that didn't make sense to you I can recommend learning some statistics - it's really helpful. Also, no level of IQ is proof that you are a genius. Most IQ tests are extremely limited, for practical reasons, and none of them measure your intelligence with good validity. That concept is simply too wide to be measured reliably and validly. At least for the present. IQ is a score that is related to (operationalized) intelligence, it is not intelligence.