Serious thinkers attempt to answer the question re intelligence:
Prominent AI engineer François Chollet (right) pointed out in a recent open access research paper that adaptability is what characterizes human intelligence. We generalize from the known to the unknown without prior programming and do not get stuck very often in endless feedback loops.News, “Which is smarter? Babies or AI? Not a trick question” at Mind Matters News
Even infants learn to generalize without programming and do not get stuck in endless feedback loops. But teaching AI to do that is easier said than done because it is bound up with the hard problem of consciousness.
That said, Chollet has some interesting ideas for new ways of understanding intelligence, especially his Algorithmic Information Theory.
Other articles you might enjoy on the limitations of AI:
Thinking machines: Has the Lovelace test been passed? Surprising results do not equate to creativity. Is there such a thing as machine creativity?
The flawed logic behind thinking computers There is another way to prove a negative besides exhaustively enumerating the possibilities. (Eric Holloway)