Magic Maths

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.




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Rules to be followed:
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Mother: the mother cannot stay in the raft or outside the rat without the presence of the father.
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The rules are applicable not only in the raft but also outside the raft.

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John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

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Challenging

There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.