Human Biology

How does an artificial heart work? Who was the first recipient?

Planet Earth

Is Mount Mauna Kea of USA taller than the Mount Everest?

Planet Earth

Why pulses and beans contain protein and vegetables don’t?

Planet Earth

From Where Does The Sweet Water Come Inside Coconut?What Is Its Role?

World

Has any of Nostradamus's predictions actually come true?

World

Which is the port and which the starboard side of the ship?

How things work

Why does wood warp in damp weather?

Outer Space

What is the source of the Sun’s energy output?

Outer Space

What did the American astronauts leave behind on the Moon?

World

When were elephants first used in war and how far were they effective?

Science and Technology

Where does a text SMS go if the receiver’s phone is switched-off?

How things work

Which has been the longest and heaviest freight train on record?

Science and Technology

Can hydrogen become an alternative fuel to petrol and diesel?

Planet Earth

What is a hurricane? How is it different from a typhoon?

How things work

Who Invented The Torpedo And How Does It Work As An Anti-Ship And Anti-Submarine Weapon?