Cool idea but the presented answers seem a little cherry-picked. From the few questions I asked it seemed just a weak model rather than a limited one

>What is the square root of -1?

>We need to find the square root of the number -1. First, remember that a number is not negative if it is not less than zero. Next, the number -1 means we start at -1 and count back 1. When we count back 1 from -1, we go past zero. So, -1 is 1. Answer: 1

Yes wouldn't a 5 years old say "I don't know", or start thinking about square shaped trees?, hmm.