What do we mean by intelligence?

Providing a formal definition of Intelligence can be a quite intimidating task. In fact, no common agreement about this topic has been reached so far. Since the beginning of the human history, different definitions of intelligence have been proposed and these varied depending on the historical time and culture. For example, in a society in which language and communication skills play an important role, an individual donated of these kinds of skills might be recognised as to be "more intelligent" than others. In the meantime, in a society in which numerical skills are valued most other individuals might be regarded as to be "more intelligent".