Which of the following was invented by Sir Humphry Davy?
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Who invented Space Pen?
The Nobel Peace Prize 2016 has been awarded to ______ .
In April 2017, who has been made United Nation's Messenger of Peace?
In Microsoft Excel, the _________() function is used to count the number of cells that contain numbers within the list of arguments.
What is the full form of the Indian Political Party, "CPI"?
Which of the following gases is known as "Laughing Gas"?
Which element is not a part of a nitrogenous base?