Unable to answer "What’s the topic of this information board?" – 六郷の渡し跡 (Information Board) – node/11110789106 via StreetComplete 60.1:

Not sure if it still exists on the corner, or if there were two.

Attached photo(s):
https://streetcomplete.app/p/264909.jpg

Unable to answer "What’s the house number of this building?" – House – way/326651694 via StreetComplete 58.2:

This is two conjoined houses, 88(SE) and 90(NW) Argyle.

Attached photo(s):
https://streetcomplete.app/p/253488.jpg

There's a touchscreen map/directory here next to the escalator.

via StreetComplete 60.0

Attached photo(s):
https://streetcomplete.app/p/256833.jpg

Unable to answer "What are the opening hours here?" – Banjo's Bakery Cafe (Bakery) – node/8574889256 via StreetComplete 60.0:

I don't remember where in the food court it was, exactly

Attached photo(s):
https://streetcomplete.app/p/256832.jpg

Unable to answer "What’s the surface here?" – Foot Path – way/-92 via StreetComplete 58.2:

Fake grass

Attached photo(s):
https://streetcomplete.app/p/253491.jpg

Unable to answer "Does this crosswalk have tactile paving on both sides?" for node/2607686270 via StreetComplete 51.0:

Not a divided road

Attached photo(s):
https://westnordost.de/p/135958.jpg

Unable to answer "Does this crosswalk have tactile paving on both sides?" for node/7085200720 via StreetComplete 51.0:

Not a divided road

Attached photo(s):
https://westnordost.de/p/135957.jpg

Unable to answer "What are the opening hours here?" – Hungry Jack's (Burger Fast Food) – way/347547855 via StreetComplete 58.2:

Dining room 6:00-24:00 every day
Drive-through 24/7

Unable to answer "Are these opening hours still correct?" – Club Hotel (Pub) – node/11050319216 via StreetComplete 58.2:

This is the gaming area's hours.

Unable to answer "What surface does this road have?" – Service Road – way/1305881491 via StreetComplete 58.2:

I guess it is technically stone, but it is definitely not road.

Attached photo(s):
https://westnordost.de/p/230285.jpg