Unable to answer "What kind of building is this?" – osm.org/way/807540118 via StreetComplete 56.1:

There are actually three clearly separated houses here

Unable to answer "What’s the house number of this building?" – Office Building – osm.org/way/261372735 via StreetComplete 56.1:

There's no building here, just a barrier and its infrastructure

Unable to answer "What can be left here for recycling?" – Les Petits Riens - Spullenhulp (Recycling Bin) – osm.org/node/5663175641 via StreetComplete 56.1:

It's at the other side of the roundabout in Paulsen.

Attached photo(s):
https://westnordost.de/p/197906.jpg

Unable to answer "What’s the surface here?" – Cycle Path – osm.org/way/1148344459 via StreetComplete 56.1:

This piece of path doesn't exist.

Unable to answer "What are the pickup times of this collection box?" – osm.org/node/1240039777 via StreetComplete 56.1:

I don't see a pickup box here, but there's an office, maybe you can do pickup there?

Unable to answer "Who is allowed to park here? Parking may be free or paid." – BMW parking (Parking Lot) – osm.org/way/375720381 via StreetComplete 56.1:

There are two separate areas. Along the building is private for the garage, across the road is public.