Brain teasers like today’s rope challenge stimulate analytical reasoning and fluid intelligence. Identifying the correct rope attached to a dog within five seconds tests problem-solving and observation skills, highlighting traits of high IQ individuals. The answer is rope 2. Brain teasers like today’s rope challenge stimulate analytical reasoning and fluid intelligence. Identifying the correct rope attached to a dog within five seconds tests problem-solving and observation skills, highlighting traits of high IQ individuals. The answer is rope 2. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle