Science and Technology

When was the mathematical symbol π (pi) discovered? And what are its peculiarities?

Outer Space

Where had the Big Bang happened? Where is the center of the universe?

Living Creatures

Why do snakes have forked tongue?

Science and Technology

What are the units of measurement of light?

World

What is the reason behind different skin colors in people across the world?

Science and Technology

How does a mobile phone work? And is it harmful for the brain?

World

What is the Doomsday Clock? And what is the current time shown by it?

Outer Space

What is the length of day and night on the moon?

How things work

Why is water used as a fire extinguisher?

How things work

What is the process of turning Mercury into Gold?

World

Which country issued the world’s first adhesive postage stamp? And what was it called?

Human Biology

How did Swine Influenza Virus (SIV) originate? And how did it get the name H1N1?

Human Biology

Why does persistent yelling make one hoarse?

How things work

How do bakers make a small lump of dough swell up and turn it into spongy bread?

World

Why British national flag is called the Union Jack?