Which queen of the Kakatiya dynasty ruled over Warangal, part of modern Andhra Pradesh?
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World War II started in the year?
Which of the following was invented by Sir Humphry Davy?
Who invented the contact lens?
Which of the following man has been honoured with ‘Uttam Jeevan Raksha Padak’ the second-highest Gallantry award for civilians?
Battle of Haldighati in 1576 was fought between Akbar and _______.
The least number, which when divided by 5, 6, 7 and 8 leaves a remainder 3 in each case, but when divided by 9 leaves no remainder, is:
Find the power of a convex lens if the image formed is at a distance of 20 cm from the lens when the object is placed on the other side of the lens at 25 cm from the optical centre?