[Answer] Which country's emperor built the Taj Mahal as a monument to his deceased wife?

Step 1 : Introduction to the question "Which country's emperor built the Taj Mahal as a monument to his deceased wife?"

...The Taj Mahal is an ivory-white marble mausoleum on the south bank of the Yamuna river in Agra, India. It was commissioned in 1632 by the Mughal emperor Shah Jahan to house the tomb of his favorite wife, Mumtaz Mahal who died giving birth to their 14th child. It also houses the tomb of Shah Jahan, the builder. The tomb is the centerpiece of a 42 acre complex, which includes a mosque and a guest house, and is set in formal gardens bounded on three sides by a crenellated wall. The Taj Mahal remains one of the world’s most celebrated structures and a stunning symbol of India’s rich history.

[Answer] 9. Australia has what country's flag in its upper left corner?

Step 1 : Introduction to the question "9. Australia has what country's flag in its upper left corner?"

...1. The United Kingdom 2. Ireland 3. France 4. Spain The U.K. flag is called the "Union Jack" when it's flown from the jack-staff of a ship. Australia also has six stars,five representing the Southern Cross, and one that is the Federation Star.

[Answer] What country's inhabitants enjoy "reveillon" on Christmas Eve?

Step 1 : Introduction to the question "What country's inhabitants enjoy "reveillon" on Christmas Eve?"

...In Haiti, Christmas is a time for families to get together for a special dinner and gift giving. The large Catholic population in Haiti means many attend midnight Mass on Christmas Eve. Afterward, a special meal called "reveillon" begins and lasts until the lights of dawn break the morning sky. Children clean their shoes and fill them with hay. Santa comes during the night to replace the hay with presents. Source: Reference.com