Actually, it was Miguel that suggested we think like 6 year olds, Claude just said "a child could figure it out." Technically a child could be anyone up to 17 years old, but i think in the spirit of his statement, we can assume that this puzzle requires no more than grammar school skills...

> I don't know if anyone has actually looked at the "average" 6
> year old.

> the average 6 year old is in first grde, can probably count to twenty, so
> most likely, using higher numbers than twenty or using fairly
> sophisticated mthematics methods and formulas wont work. we could try
> using the #'s between 0 and 20 to find an answer.

> I dont know, im just writing an idea i had in my head, just trying to shed
> a new light.

> only if we had a 6 year old...