Who was the first man to walk on the moon?

Which is the nearest star to planet earth?

Which is the principal source of energy for earth?

How many lungs does the human body have?

Which is the tallest mountain in the world?

Which is the fastest animal on the land?

Which planet is known as the Red Planet?

What is the longest river in the world?

On what continent is located Ecuador?

Where did the Olympic games start?

Which is the most sensitive organ in our body?

How many years are there in a century?

Which is the largest country in the world?

In what country is the tower of Pisa?

Which is the continent with the most number of countries?

What is the largest ocean?

How many strings does a violin have?

Which is the smallest continent in the world?

How many years are there in a millennium?