What are some problems which are easily solved by human brain but which would take more time computers? Are there any problems which can be solved by human brain in a very less time but a computer may take a lot of time or a computer could never solve it ?
Language processing. 

Every kid learns how to use language within his first 1-3 years. Computers still don't understand simple language structures, not to mention ambiguity, sarcasm, subtleties, etc.