First:I have three children. The product of their ages is 36. If you sum their ages, it is exactly same as my neighbor's door number on my left. What are their ages?

Second: Takes a look at the door number and verifies it.Well, that data is not enough.

First:One more clue. My youngest is the youngest

Immediately the second mathematician finds out their ages. Can you?

]]>A beggar collects cigarette stubs and makes one full cigarette with every 7 stubs. Once he gets 49 stubs, how many cigarettes can he smoke totally?

Note to readers from developed nations: This is a logical puzzle and not a question about the socio-economic issues in the third world countries.

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