Who invented the bifocal glasses?
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When is International day for Preservation of Ozone layer observed?
Which queen of Ahmednagar opposed emperor Akbar?
The height of a light house is 20 mts above sea level. The angle of depression (from the top of the lighthouse) of a ship in the sea is 30 deg. What is the distance of the ship from the foot of the light house?
What does UFO stand for?
Rearrange the jumbled up letters in their natural sequence and find the odd one out.
Which sport has the highest rank of Yokozuna?
Ritesh sold a pen for Rs. 36 with a profit of 20%. If it were sold for Rs.33, then what could be the percentage of profit or loss?