Unable to answer "What diameter is specified on the sign for this fire hydrant?" – Fire Hydrant – osm.org/node/11826962208 via StreetComplete_ee 58.0:

Only on of the hydrants (the standing one) is a fire hydrant, the other one is a "garden hydrant" without sign

Unable to answer "Is this still here?" – Trash Can – osm.org/node/4645441956 via StreetComplete_ee 58.0:

Ashtray only

Unable to answer "Is this still here?" – Trash Can – osm.org/node/4645441957 via StreetComplete_ee 58.0:

Ashtray only