Google does provide answers to simple questions, and its capabilities grow over time. Wolfram Alpha has operated in a similar domain, but using different technology (i.e. not inherently a search engine) for some time now.

request with arbitrary results accessible out of 927M: https://i.imgur.com/PHzrXSu.png

I didn't suggest that critical thinking was declining. I don't have a position on whether it is or is not - I can think of several different factors that would (collectively) push in both directions.