General Knowledge Questions

Why does a black board appears black in colour?

Which metal is liquid at room temperature?

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

If there is a subject of really ______________ interest and utility, it is the art of writing and speaking one's own language ___________. It is the basis of culture, as we all know; but it is infinitely more _________ that, it is the basis of business. ___________ salesman can sell anything unless he can explain the merits of his goods in effective language, or can write ___________ advertisement equally effective, or present his ideas, and the facts, in a letter.

of business. ___________ salesman can selly

Select the word with the correct spelling.

The least preferred technique in the disposal of Municipal Solid Waste is

Who has the record of highest number of Gold Medals in the history of Olympics?

Who Invented the computer mouse?

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.
Rajesh ordered his driver to do as he was told.