1) The FIFA World Cup is the most-watched sporting event globally, with billions of viewers tuning in for the tournament held every four years.

2) Cows have best friends and can become stressed if they are separated.

3) The concept of reinsurance, which is insurance for insurance companies, originated in the 17th century.

4) The Mariana Trench in the western Pacific Ocean is the deepest part of the world's oceans, reaching a depth of approximately 36,070 feet (10,994 meters).