1. When they give the two words, why is one easy and the other impossible?
Wouldn't a single impossible work work as well?
What's the reason for the easy word?

2. When they give the house numbers, how do they know you're right?
Are they using us to farm out the job of figuring out the numbers?
What do they "do" with the numbers if that's the case.
Or, does someone already tell them what the number is first?
But, if that's the case, ANY number would work (not just house numbers).

What's going on?