Who invented first working laser?
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Who Invented the 3-D printer?
Canberra is capital city of which country?
A language used to control the tasks of the computer itself, such as starting other programs, is _____.
Which country will be hosting 2018 Men's Hockey World Cup?
Who Invented Neon Lamp?
Who has the record of highest number of Gold Medals in the history of Olympics?
Arrest of _________ in 1930 led to angry demonstrations in streets of Peshawar.