Where is the father?

I just read the "Where ist the fish?" topic? This reminds me of another one named "Where is the father"? Maybe some of you already know this one. I guess it is quite famous, at least in Germany it is. You can try to solve it. And it definetely works - you can give an adequate solution to this problem. If no one is able to solve it, I will give the answer later on.
This is one of those questions I like most......

There is a mother which is 21 years older than her son.
In 6 years, the son will be 5 times younger than the mother. ( <-- btw., is this correctly translated into English? )

Question: Where is the father?

Well, since it takes 9 months to carry a baby, I would say the father is, at that moment, impregnating the mother. Although babies do come at their own pace, so it seems a little silly to predict exactly when he'll be born.

Grammar Geek wrote:

Well, since it takes 9 months to carry a baby, I would say the father is, at that moment, impregnating the mother. Although babies do come at their own pace, so it seems a little silly to predict exactly when he'll be born.

Yeah, it doesn't take exactly nine months, so you can't tell exactly where the son is... maybe he's still in the testicles, who knows... or maybe he's going to leave, and he's like "Ok dude, I'm outta here, see ya in nine months". That's why I said there's no exact answer actually.