Nautical miles is a unit of distance used in
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Polarizing sunglasses are useful because they are able to
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Malayalam is the official language of _________.
Among the following which one lays eggs and does not produce young ones directly?
Who among the following was NOT one of the recipients of Major Dhyan Chand Lifetime Achievement Award for the year 2016?
Animals in which the cells are arranged in three embryonic layers are called ________.
India's first official census operation was undertaken in which year?
Select the word with the correct spelling.