All researchers know that a strong correlation between two variables does not necessarily mean a cause-effect relationship between them. For example, if you found a positive and strong correlation between smart people and chewing gum, it doesn’t mean that if you give people bubble gum, it will make them smarter.
There is a website and a book (Spurious Correlations) dedicated to documenting with graphs and values, several strange correlations:
Remember: Correlation is not necessarily causation. Have you found any in your work?