Problem solving is a crucial cognitive skill that helps us tackle challenges in various aspects of life. It involves identifying issues, analyzing information, and generating effective solutions using a combination of analytical thinking, creativity, and decision-making abilities. Key concepts in problem solving include mental representations, problem space theory, and insight. Strategies like algorithms, heuristics, and decomposition are employed, while cognitive processes such as attention, memory, and reasoning play vital roles. Understanding common obstacles and biases can enhance problem-solving effectiveness.