Who propounded the atomic theory?

When was first operating system introduced?

Which is the longest day on the earth?

How many districts are there in the Terai region?

Who is popular as “Lauha Purush” (Iron man) of Nepal?

How old was Jung Bahadur when he became the prime minster of Nepal?

How many state member are there in the UNO?

Who is known as the father of genetics?