Which among the following has the maximum life span
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Silk worms feed on
What is the name of the most ancient spiral galaxy that existed 11 billion years ago?
The second most senior office in the country is of _____ .
The diagonal of a square is 10√2 cm, find its perimeter?
In the following question, select the odd letter/letters from the given alternatives
The number of permanent members of the U.N. Security Council is
A and B together can finish a work in 30 days. They worked for it for 20 days and then B left the work. The remaining work was done by A alone in 20 days more. In how many days can A alone finish the work?