1) The word "book" contains two vowels: O and O.

2) The average person spends around six months of their lifetime waiting for red lights to turn green.

3) The United Nations (UN) is an international organization founded in 1945 with the goal of promoting peace, security, and cooperation among nations through diplomatic and political means.

4) The first video game console, the Magnavox Odyssey, was released in 1972 and featured games such as Pong and Table Tennis.