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?

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?