1) The novel "To Kill a Mockingbird" by Harper Lee has been translated into more than 40 languages and has sold over 40 million copies worldwide.

2) The Indian Ocean is the third-largest ocean and is characterized by its warm waters and diverse marine life.

3) The shortest verse in the Bible is "Jesus wept" (John 11:35).

4) The Earth's core is primarily composed of iron and nickel and is as hot as the surface of the sun.