Science and Technology

Will a car give more power and deliver more kilometers per liter with premium fuel?

Human Biology

On what basis is blood classified into various groups?

Science and Technology

What are the two different types of calories?

Planet Earth

Why do we experience rich and refreshing earthy smell after a rainfall?

Living Creatures

Why do some birds migrate thousands of miles?

World

Which was the first country to introduce paper currency?

How things work

Is it true that during warm weather it is a bad idea to fill car's petrol tank at the end of the day?

Living Creatures

Which birds have the most and the least feathers?

Outer Space

What type of physiological problems the astronauts undergo after spending a long period in the weightless condition?

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?