What Does it Mean to be Intelligent?

I am watching a special TV program hosted by Takeshi Kitano. This program is titled "A White Paper on Japanese Education" (or something like that). But they are not really dealing with educational issues; for example, they are discussing what it means to be intelligent. I mean, intelligence is related to education, but it doesn't seem to be specifically problematic for the current Japanese educational system. I wish the program were dealing with issues specific to Japanese schooling.