Who invented Helicopter?
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In which field did Amartya Sen win the Nobel Prize ?
Big landlords or warrior chiefs in the seventh century were acknowledged as _________ by the existing kings?
Mir Hassan Dehlavi was in the court of which of the following?
Thomas Cup is associated with which of the following sports?
According to the categories of land mentioned in the Chola inscriptions ___________ was known as the land gifted to Brahmanas?
If 4x2 - 12x + k is a perfect square, then the value of k is
5% more is gained by selling a watch for Rs. 350 than by selling it for Rs. 340. The cost price of the watch is