1. Intelligence - The ability to correctly understand or interpret the issue or problem at hand.

2. academic intelligence - Knowledge learned from a book, but not applied to the real world, or possible having no use in the real world.

3. everyday intelligence - Common sense, the kind of knowledge that tells you not to stick your hands into fires. Doesn't require teaching or teachers to gain.

4. unitelligence - Lack of all higher facilities. Operating on instinct or reflexes. On autopilot.