Science and Technology

Which was the world's first communication satellite? (Echo-1)

Science and Technology

How much helium is required for buoyancy if a person wants to go up in the air on a balloon?

Planet Earth

Which is the remotest inhabited island? How far is it from the nearest human habitation?

How things work

On milling maize (corn) we get maize flour then how is corn oil derived?

Planet Earth

What is the raw material of menthol?

How things work

Why is gold so easily malleable while iron is so rigid?

Science and Technology

What happens if a car having petrol engine is refueled with diesel?

Planet Earth

What is miracle fruit that turns sour food sweet?

How things work

What is the process of food irradiation? And how does it prevent food spoilage?

World

Which country is the world's largest producer of bananas?

World

Who had burned down the original White House building in 1814? And why?

Science and Technology

How does an ejection seat work in a fighter aircraft?

World

How much is an Oscar Award statuette worth?

World

When was the ship's distress signal SOS/Save Our Souls used for the first time?

Outer Space

Is there a supermassive black hole at the center of our Milky Way galaxy?