Ключевые слова: adult, application, background, blackboard, boy, brain, business, businessman, caucasian, clever, concept, confusion, contemplate, design, draw, effort, engine, engineer, gear, guy, handsome, head, idea, intelligence, iq, job, knowledge, learn, male, mechanism, memory, mess, mind, people, processing, profile, skills, smart, social, solution, student, study, test, think, understanding, wall, white, young,