These are all quite fun oddities. The one about house number and post code being insufficient is reasonably obvious if you’ve lived in a village in the uk where

These are all quite fun oddities. The one about house number and post code being insufficient is reasonably obvious if you’ve lived in a village in the uk where it’s pretty common for houses to not have numbers (only names like ‘the old school house’) and later be split up into two semi-detached houses hence getting separate numbers leaving the village with lots of number 1 or 2 houses. So far I’ve already lived in places where a number+postcode were insufficient, where one building had multiple postcodes, on a one-word street, and I worked at an ‘& a half’ address. The street number thing I’ve noticed is mostly that as buildings have grown since the numberings were introduced, they became much less sequential so you see a lot more round numbers – buildings would rather be number 20 than 19 (and they’d really like to be number one), for example.