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.

Terry Bisson's THEY'RE MADE OUT OF MEAT

http://www.terrybisson.com/page6/page6.html

(Well, as xkcd says, someone will read this classic today for the first time)

The Egg: http://www.galactanet.com/oneoff/theegg_mod.html

Also Clarke's "The Nine Billion Names of God" from the answer below, not read that in years, or any of Clarke's/Asimov's.

Everyone should read Saki’s The Open Window[0].

[0] https://ebooks.adelaide.edu.au/s/saki/beasts/chapter6.html

Frederick Forsythe's "The Shepherd".

Look for the podcast with Alan Maitland's reading on CBC.ca or YouTube. It's become tradition for CBC to broadcast it every year on the last weekday before Christmas.

"The Marvelous Stamps from El Dorado" by Robert Arthur. I first read it in maybe 7th grade, and I still remember.

Hemingway's A Clean, Well-Lighted Place

Pynchon's Entropy