The document discusses several theories of intelligence, including:
1. Fluid and crystallized intelligence theory which distinguishes between the ability to solve new problems (fluid) and acquired skills (crystallized).
2. Triarchic theory which includes abilities like problem-solving, analyzing situations, and adapting to environments.
3. Binet's theory of complex mental processes and his development of the first intelligence test with Simon.
4. Gardner's theory of multiple intelligences which identifies eight types of intelligence like linguistic, logical-mathematical, spatial, musical, bodily-kinesthetic, interpersonal, intrapersonal, and naturalist.