1) The tongue of a blue whale is so big that about 50 people could stand on it.

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

3) Marilyn Monroe, born Norma Jeane Mortenson, was an iconic American actress, model, and singer, known for her beauty, charisma, and tragic personal life.

4) The insurance industry plays a crucial role in risk management by providing financial protection against various risks, such as accidents, natural disasters, and liability claims.