1) Insurance premiums are the payments made by policyholders to insurance companies in exchange for coverage.

2) The Victoria Amazonica water lily has leaves that can grow up to 10 feet (3 meters) in diameter, making it one of the largest aquatic plants.

3) The word "pencil" contains two vowels: E and I.

4) The highest-grossing concert tour of all time is U2's "360° Tour," which earned over $735 million in ticket sales.