Intelligence is a composition of HEAD -MIND-BRAIN.It is a part of our memory ,understanding ,interpretation & harmonious co ordination with our action of our life.
For every human beings intelligence is not common it varies from individual to individual .Very often it comes to resulting forces of our action of previous lives calling for the revise graph of our mind the result of which defines as Genius one of the high element of intelligence.
Our inheritance with the present gift of our creative energy of our early life play an very important part .W e may call a destiny please do not consider the same as laughing stock as very recently it has been observed that a young girl of 7 yrs of the middle class family was give to reply of the name,places ,capital of all the countries not only that late Mathematician Shakuntala Devi had an first working of figures any units was during much more with the higher speed than any calculated or elector media .
To me this is to be viewed as a gift of the previous life .This of course may be exceptional but besides such exceptional cases intelligence may come from our past action .
Intelligence may not be common to any individual as quite good case,highly intelligent & qualified standing parents their children may not have completed the gate of the college .
In this line intelligence to be measured by considering every aspect of human beings .