Which is the longest river on the earth?

Dispur is the capital city of which north-eastern state?

Which is the largest continent?

Which gas is responsible for global warming?

The planet known as the "Earth's Twin" is

The Rocky planets, also known as the Inner planets include all of these except _____.

These are small pieces of rock that orbit the sun.

In order to locate your positions or navigate from one place to the other, two numbers are used called _____ and _____.

Who painted the Mona Lisa?