1) 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).

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

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

4) The assassination of Archduke Franz Ferdinand of Austria in 1914 triggered the start of World War I.