World

Why is number 13 considered unlucky?

World

Which was the world’s first newspaper? When did it begin?

Outer Space

Is there any possibility of undertaking the first manned space flight to Mars, the red planet?

Planet Earth

Which are the biggest waterfalls in the world, apart from Niagara Falls?

Planet Earth

Where is the next tsunami expected to strike? Western USA!

Planet Earth

When a leaf is plucked from a tree, does it hurt the tree?

Living Creatures

Some camels have two humps on their back. What are they called?

Planet Earth

Where does the flavoring agent vanilla come from? Is it sourced from plants?

How things work

How much CO2 does a passenger car emit per kilometer traveled?

Planet Earth

Like the Moon, does the Sun play any role in causing ocean tides?

World

What function does barcode perform? And where is it used?

Science and Technology

Why is the cooling power of air-conditioning measured in tons?

World

What was the origin of the Olympic Games?

Science and Technology

Why do we hear the sound of sea waves on a conch shell?

Living Creatures

How many flowers a honeybee must visit to make 1 kilogram of honey?