1) A group of flamingos is called a "flamboyance."

2) The hibiscus flower is commonly associated with tropical regions and is the national flower of several countries, including Malaysia, South Korea, and Haiti.

3) The increasing emphasis on mental health and well-being has led to greater awareness, advocacy, and destigmatization of mental health issues, as well as efforts to improve access to mental health services and support systems.

4) The musical "The Phantom of the Opera" has been running in London's West End since 1986, making it the longest-running musical in history.