1) The Beatles hold the record for the most number-one hits on the Billboard Hot 100 chart, with 20 songs reaching the top spot.

2) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.

3) Online banking and mobile banking have become increasingly popular, providing convenient access to banking services through digital platforms.

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