Quiz

Let's say one of them is from kindergarten, meaning they are under 5 years old (okay, let's say up to 6). At what age do they start taking children to kindergarten, considering the nursery group (let's say from age 3)? There is an older and a younger child (so, they are not twins). Let's round the age difference down to a minimum of one year. The concept of a "long meeting" is too vague to use it to exclude certain options. Let's assume that counting the number of pigeons is problematic if there are more than twenty, so the product should be 20 or less. I'm left with 3 and 4, 3 and 5, 4 and 5 years old – I can't narrow it down further. Perhaps I should choose 3 and 4 because counting 12+ pigeons is also difficult at a glance. Although... it turns out that the desired product could have been obtained in at least two ways, one of which is x^2. Then, the possible products are: 4, 9, 16, 25, the rest are clearly outside the range. Of these, 4 and 16 theoretically could be obtained without using x^2, but for 16, it would have to be 2 and 8, and 8 years is too much. 9*1, 16*1, and 25*1 obviously don't work. This leaves the product 4, and the ages 1 and 4 years old. (yes, I made a mistake with the nursery group).