Asimov's "The Last Question".

https://en.wikipedia.org/wiki/The_Last_Question

https://www.multivax.com/last_question.html

Clarke's "The Nine Billion Names of God"

https://en.wikipedia.org/wiki/The_Nine_Billion_Names_of_God

https://urbigenous.net/library/nine_billion_names_of_god.htm...

Dick's "We Can Remember It for You Wholesale"

https://en.wikipedia.org/wiki/We_Can_Remember_It_for_You_Who...

google the title and find a PDF on https://philosophy.as.uky.edu

And I'd better stop before I remember another.