Unable to answer "Are there traffic signals that show when to cross here?" – Crossing – node/5200650641 via StreetComplete 61.3:

The traffic lights are turned off most of the time.

Attached photo(s):
https://streetcomplete.app/p/305740.jpg

Unable to answer "What’s the house number of this building?" – Retail Building – way/319264642 via StreetComplete 61.3:

Does not exist

Unable to answer "What’s the house number of this building?" – Retail Building – way/319264644 via StreetComplete 61.3:

Does not exist

Unable to answer "What street is this on?" – Cukiernia Karpatka (Candy Store) – way/319258701 via StreetComplete 61.3:

Closed down