The research investigates metaphor comprehension using an individual-differences approach. Following the claims that analogy, rather than conceptual combination, is more likely to lie at the root of understanding conceptually complex metaphors, the research was designed to examine the comprehension of metaphors varying in complexity, including both literary and non-literary metaphors. Three studies (Study 1, Study 2A and 2B, and Study 3) were designed to assess college students’ metaphor comprehension in connection with fluid and crystallized types of intelligence. Study 1 and 2 examined noun metaphors, and Study 3 examined verb metaphors. Study 1 was based on a multiple choice task which consisted in choosing the best metaphor interpretation option. Study 2 (A and B) included an additional completion task. Study 3 was based only on non-literary verb metaphors, but it also tested the familiarity factor. All studies measured fluid intelligence by means of a version of the Raven’s Progressive Matrices test, and all studies measured crystallized verbal intelligence by means of a newly designed instrument, Semantic Similarities Test. Study 3 included another test of verbal crystallized intelligence, the Vocabulary subtest of the Wechsler Adult Intelligence Scale. The results give more insight into the question of whether metaphor comprehension relies on analogy or conceptual combination, and whether different metaphors trigger a specific type of reasoning.