Unable to answer "What’s the height of the curbs at this crossing?" – Crossing – osm.org/node/3774977350 via StreetComplete 59.2:

Au niveau de la route d'un côté, bordure haute avec un chanfrein de l'autre

Unable to answer "Is this still here?" – Map – osm.org/node/4336618083 via StreetComplete 59.2:

Je n'ai pas trouvé de carte ici.

Unable to answer "Which customers visit this hairdresser?" – Hairdresser – osm.org/node/3994487102 via StreetComplete 59.2:

C'est maintenant un coffee shop, le "kaffee Paulette".

Attached photo(s):
https://westnordost.de/p/249020.jpg