I couldn't find the spring in april 2016. Is it only out off water for the summer or it no longer exists?

Nezda sa mi, ze by tu este nieco existovalo, nejake jazdy na konoch ci zazemie pre kone.

Unable to answer "What’s the identification number here?" – Street Lamp – node/9752339962 via StreetComplete_ee 61.1:

Neoznačená

Martins Cathedral

"Памятник "
The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI has no name
POI types: amenity-bench
OSM data version: 2019-09-09T23:32:17Z
#mapsme

Presidential Palace

Not clear what kind of building this is

Co je toto za bunker?

In context of overlay "Things" – Tatra banka (ATM) – node/1692455187 via StreetComplete 61.1:

raiffeisen

This footpath (way/119216469) is not connected to the bike path here anymore, since the bikepath is on an elevated ramp with railings on both sides here.

It now probably connects a few meters to the east, right before the ramp, but it needs checking out.