Unable to answer "How is this power line attached?" – Power Pole – node/12632562286 via StreetComplete 61.3:

Mixed over under connections

Attached photo(s):
https://streetcomplete.app/p/313946.jpg

Unable to answer "Does this bench have a backrest?" – Bench – node/5212888929 via StreetComplete 61.3:

Appears to be much closer to road than water

Attached photo(s):
https://streetcomplete.app/p/313947.jpg

Unable to answer "What’s the name of this street?" – Pedestrian Street – way/729769097 via StreetComplete 61.3:

Accessway for maintenance, and pedestrian road

Unable to answer "What are the opening hours here?" – Scale Marine  Modellers Inc. (Model Shop) – node/5537437541 via StreetComplete 61.3:

Complicated

Attached photo(s):
https://streetcomplete.app/p/314113.jpg