Science and Technology

How long did the first light bulb stay lit?

Human Biology

Why can’t we remember certain dreams?

Science and Technology

What is RSS feed and RSS aggregator?

Science and Technology

What is email spam? Where is the word 'spam' derived from?

Planet Earth

Why do trees stop growing after reaching a certain height?

World

Which is the longest lasting light bulb?

Science and Technology

Which is the softest mineral that has been given the lowest rating of 1 on Mohs scale of mineral hardness?

Planet Earth

Why are some plants insectivorous, or carnivorous?

World

Who Is The Actual Inventor Of Electric Light Bulb, If Not Thomas Edison?

Human Biology

Why does one’s face turn pale white when one is frightened?

World

Which country was the first to use paper money as medium of exchange?

World

Which is The Largest Diamond Ever Known? Who owns it now?

Science and Technology

Does Sound Travel At The Same Speed In Air And Water? Does It Go On Forever?

Living Creatures

Which is the fastest moving land snake in the world?

Living Creatures

How does a snake swallow something bigger than itself?