Metaheuristics are like grown-up problem solvers. They are like a set of tricks or tools that can be used to solve hard problems. They help computers figure out the best answer to a problem when it's too difficult, or too time-consuming to figure out the perfect answer. Metaheuristics try different approaches to the problem, and then the computer picks the best answer it finds. For example, if you need to fly from one city to another, a metaheuristic might try several different combinations of flights before coming up with the best solution.