It depends on how many people are the smart enough to think of such a question.
It is known that Shahrukh is the smartest of the above mentioned gentlemen. This is because of his witty replies to the questions of people. Many people ask him many questions and he replies with all hit wit hence is smartest of them.
I think Devin Hester is the smartest
Out of all the people in answers.com who is the smartest?
the smartest animal on earth is a chimpanzee.
No American, Chinese, Japanese are the smartest people in the world.
They are very smart. Indeed, if you think about it they were the smartest people on Earth. They Mayans never disappeared.
China
poodles are the smartest dogs and I think they are like the 5th smartest animal
Indians of course.
Albert Einsteins I think
yes.
No group of people can be called "the smartest race in the world." All races have smart people and not-so-smart people.