Unable to answer "What’s the surface here?" – Unmarked Crossing – way/1245913145 via StreetComplete 60.1:

No formal crossing

Unable to answer "What’s the height of this curb?" – node/11582591051 via StreetComplete 60.1:

No crossing

Attached photo(s):
https://streetcomplete.app/p/261267.jpg

Unable to answer "What are the pickup times of this collection box?" – Mail Drop Box – node/269563059 via StreetComplete 60.1:

No postbox here

Attached photo(s):
https://streetcomplete.app/p/261268.jpg

Unable to answer "How many car lanes does this road have?" – Chemin des Anciens-Moulins (Residential Road) – way/157575282 via StreetComplete 60.1:

3 single lane
1 lane turn right to leave the street
1 lane to go left to leave the street
1 lane to come into the street
With 2 island between

Attached photo(s):
https://streetcomplete.app/p/261159.jpg

Unable to answer "How many car lanes does this road have?" – Chemin des Anciens-Moulins (Residential Road) – way/374935979 via StreetComplete 60.1:

See other note

Unable to answer "Do these traffic lights have a tactile indication for blind people for when it’s safe to cross?" – Traffic Signals – node/7352138094 via StreetComplete 60.1:

No trafic light

Unable to answer "What’s the surface here?" – Steps – way/89079475 via StreetComplete 60.1:

Stairs