World

How did Adolf Hitler spend his last few days before committing suicide?

Outer Space

What are gravitational waves? Do they really exist?

Science and Technology

Did medieval alchemists have magical powers to form gold out of cheaper metals?

Outer Space

What is the chemical composition of the Sun? How do astronomers identify the types of elements it contains?

Human Biology

Since evolution still continues, will man grow bigger head in the future?

Human Biology

What makes us thirsty? Is it dry mouth or dehydrated body tissue that signals thirst?

World

Which are the top ten countries with petroleum reserves?

Science and Technology

What is the difference between cluster bomb and conventional bomb?

Outer Space

Why is Jupiter’s moon Europa believed to have life under its surface?

How things work

Why does a slice of bread dolloped with honey on one side bend like a concave lens?

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?