>>>>8 4 1.
>>>
>>>No, that is not the solution.
>>>> I guess the question is when is a son old enough to have a room upstairs.
>>>
>>>Any statement about "the oldest son" can be used for the third clue; what the son does is irrelevant. For example, "My oldest son is playing in the park", or "My oldest son is asleep", or "My oldest son likes such-and-such music".
>>>
>>>>You didn't say old man which would rule out an answer like 7 4 and 2.
>>>
>>>You don't know the age of the second man, but we can be quite sure that he knows his own age.
>>
>>Ok. That is simply ruling an elder set of twins.
>>Let me think on it some more.
>
>Simply get all the age combinations that add up to 13. There are not that many of them.

10 2 1 20
9 2 2 36
8 4 1 32
8 3 2 48
7 5 1 35
7 4 2 56
7 3 3 63

Ok. :)