It means you have average reasoning and problem-solving skills. Your IQ score might be a good general indicator of your reasoning and problem-solving abilities, but many psychologists suggest that these tests don't tell the whole story. A few things they don't measure are practical skills and talents. You might have an average IQ score, but you might also be a great musician or artist. Researchers have also found that IQ scores can change over time.
There are many ways that can help a person increase their IQ as well as improve their brain function like constantly learning something new, frequent reading, learning new languages, physical exercise, proper nutrition and other activities.