Unable to answer "This shop has been vacant. What’s here now?" – house number 106A: House – way/545155123 via StreetComplete 63.0:

It's a house

Unable to answer "How many steps are here?" – Steps – way/188546450 via StreetComplete 63.0:

There are no stares

Attached photo(s):
https://streetcomplete.app/p/341924.jpg

Unable to answer "What diameter is specified on the sign for this fire hydrant?" – Pillar Fire Hydrant – node/13147605232 via StreetComplete 63.0:

Is this BH183?

Attached photo(s):
https://streetcomplete.app/p/340484.jpg

Unable to answer "What surface does this road have?" – Impasse de la Grande-Nassarue (Alley) – way/223519725 via StreetComplete 63.0:

Private access