Some problems that are hard for computers to solve are much easier for humans to solve.
A good example of this is the CAPTCHA used by Google. Google uses the power of the human brain to convert pictures of words into digital text, by asking users to type in the word in the picture. This is more effective and accurate than using a computer.
Another example of this principle is in bioinformatics. There are projects such as Foldit and Phylo that are trying to use humans to solve hard computer problems by presenting them as games.
