Each girl has 7 bags.
In each bag, there are 7 big cats
Each big cat has 7 little cats.
Each cat has 4 legs.
Question: How many legs are present in the bus?
Number of legs is the password to open the attached file. (I can confirm it is virus free BTW)
If you open the file, the idea was to write your name on the list inside, and send this email to your friends to let them solve this riddle.
Please don't share the correct answer, at least not for now

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