Living Creatures

How big is the largest dinosaur egg found so far?

How things work

Why in traffic signals red light is always placed on the top but in railway signals it is placed below green light?

How things work

Why photochromic glasses turn dark when exposed to sunlight?

How things work

Why does a popcorn kernel “pop” when it is roasted?

Living Creatures

Why are insects like moths attracted towards light?

Science and Technology

Why are some medicines in capsule form whereas others are in tablet form?

Living Creatures

Why birds perched on high voltage electric wires don’t get electrocuted?

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?