Which famous artist painted the Mona Lisa?

Question 1: What is the capital city of Canada? <br />Question 2: Which famous artist painted the Mona Lisa? <br />Question 3: In the Harry Potter series, what is the name of Harry's pet owl? <br />Question 4: What is the largest continent by land area? <br />Question 5: Which planet in our solar system is known for its distinctive rings?