In which country is the Great Barrier Reef located?
Which planet in our solar system is known as the “Morning Star” or “Evening Star”?
Which country hosted the 2016 Summer Olympics?
Who is the Greek god of thunder and lightning?
What is the primary gas responsible for causing global warming?
What is the chemical symbol for silver?
Who painted the famous artwork “The Starry Night”?
In music, how many keys are there in an octave of the chromatic scale?
a) 4
b) 8
c) 12
What is the largest ocean on Earth?
How many bones are there in the adult human body (approximately)?