Who invented the vacuum pump?
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In the following question, select the missing number from the given series. 1912, 2012, 2133, 2277, 2446, ?
If 4x - 5y = -37 and 7x + y = -16, then x - y = ______
Who was the eldest brother among the Pandavas?
Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
Which electron dot formula represents a polar molecule?
__________ amends the Constitution.
The Desert Festival is held in _____.