Cognitive ability refers to the mental skills that help us think, learn, and solve problems. It includes various functions such as memory, reasoning, and attention. For example, when you solve a math problem or remember a friend's birthday, you are using your cognitive abilities. These skills are essential for everyday tasks and decision-making. Cognitive ability can vary from person to person and can be influenced by factors like age, education, and environment. Activities like reading, playing games, or learning new skills can help improve cognitive abilities. Engaging in these activities can keep your mind sharp and enhance your overall mental performance.