Unable to answer "What’s the house number of this building?" – House – way/614356393 via StreetComplete 61.0:

No building here or to the immediate northwest

608 is just one large building

via StreetComplete 61.0

Unable to answer "What’s the house number of this building?" – House – way/614356423 via StreetComplete 61.0:

No building it seems

Unable to answer "What’s the house number of this building?" – Apartment Building – way/614281684 via StreetComplete 60.3:

No building present

This will likely become the Reserve Officers' Training Corps Facility and Student Veterans Center with time: https://buildingbama.ua.edu/projects/reserve-officers-training-corps-facility-and-student-veterans-center/

Unable to answer "What kind of memorial is this?" for node/2172473494 via StreetComplete_ee 53.32:

The monument in question is the remaining steps to the former Franklin Hall and a mound where the building used to exist. There is a historical marker to the northeast of the current POI.