Off topic: when did using solve as a noun take off? There are so many good nouns that work there (challenge, task, etc...) or use the verb form (is tougher to solve).
It’s no different than “a big ask” or a “tough sell”.
In the bay area this trend of nounifying verbs is common amongst VCs and C-level startup execs. I'm not sure if it's arisen due to peacocking or a higher incidence of ESL in those communities.
Also "invite" instead of invitation.