Human Biology

Why humans don’t have tail even though their ancestors had one?

Living Creatures

Which is the largest bird in the world?

Science and Technology

What ingredients are used for making ink for ball pen and fountain pen?

Human Biology

What is the reason for sneezing?

Outer Space

What would be the consequences of not wearing a space-suit on body of an astronaut?

Planet Earth

How are oceans formed? And why sea water is salty?

Human Biology

How does gargling with salt water help to cure a sore throat?

How things work

Which is the world’s most successful passenger aircraft so far?

How things work

What’s the reason for keeping a hole in the center of a parachute?

How things work

Who Is The Inventor Of Modern Type Mobile Phones? (Martin Cooper)

Living Creatures

Which is the most dangerous creature in the world?

Human Biology

Why hair color becomes white as we get older?

World

Is the Great Pyramid of Giza only Wonder of the World in its original form today?

Human Biology

What is the treatment for rabies or hydrophobia? Who invented anti-rabies vaccine?

Outer Space

What temperature is faced by astronauts and satellites in the space?