Natural radioactivity was discovered by
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Find the ODD number ?
Except 142 all are divisible by number '7'.
Which port is situated on the southern tip of the Suez Canal?
When did all the trade unions, except Ahmedabad Textile Labor Union, be unified?
Match the following items of column A with column B.
For an inferior good demand falls when _________.
When was Jana-Gana-Mana (which later became 'National Anthem' of India) first sung and where ?
Which is the first country in the world to use drones for national mail service?
France became the first country in the world to use drones for national mail service.