Unable to answer "What kind of building is this?" for osm.org/way/464274278 via StreetComplete 33.0:

Not a building

Attached photo(s):
https://westnordost.de/p/49286.jpg

Unable to answer "What kind of building is this?" for osm.org/way/464274277 via StreetComplete 33.0:

Not a building

Attached photo(s):
https://westnordost.de/p/49285.jpg

Unable to answer "What surface does this path have here?" for osm.org/way/572210063 via StreetComplete 33.0:

I want to say it's concrete, but it's really old and is a mix of smooth concrete, concrete rubble, and dirt...

Attached photo(s):
https://westnordost.de/p/49281.jpg

Unable to answer "What surface does this sport track have?" for osm.org/way/108315659 via StreetComplete 39.1:

There's no running track now, it's a skateboard ramp

Unable to answer "What is the name of this pedestrian street?" for osm.org/way/107615088 via StreetComplete 39.1:

It's a pedestrian bridge

3~4 parking spaces by the side of the road for the viewpoint

Bakery "A Ritinha" somewhere around here. I don't remember exactly where, but I don't remember this "Nobreza" either... I'll take note next time I pass here and update it, if nobody else does it before me.

I can't understand how the park is mapped so I don't know how to add these details myself.

Here are some details for both sides:

According to the information board, I think the name is "Conservatoire et Jardin botaniques de la Ville de Genève", and the website is https://www.cjbg.ch

Opening hours (of the park/garden itself):
* 01 April - 24 October: Mo-Su 08:00-19:30
* 25 October - 31 March: Mo-Su 08:00-17:00

I think this is the shop ("Botanic Shop -- Cabinet de curiosités")? Hours on the information board:

* 01 April - 24 October: Tu-Su 10:30-12:00, 13:00-18:00
* 25 October - 31 March: Tu-Su 11:00-12:00, 13:00-16:45

The information board on the entrance has the opening hours of the restaurant but it mentions a different name ("Le Pyramus").
Here are the opening hours (I still don't know how to tag depending on season):

* Summer: Mo-Su 08:30-19:00
* Winter: Mo-Su 09:30-16:30