But also the machine stops[1] and idiocracy both address this.
[1] https://www.gutenberg.org/cache/epub/72890/pg72890-images.ht...
How do you imagine a robot solving those?
Think of all the things we consider fun or worthwhile that are purely unnecessary struggles. Ever play sports? Build a side project just for the fun of it? Video games? Music? Art?
How does one create art without understanding struggle? How can someone find love without knowing how to keep it alive?
People need to make mistakes and then reflect deeply on them. We need to integrate our experiences with our beliefs and values in order to find meaningful expression.
I think the only exception to all of this might be abstract puzzles.
The same thing will happen to us that happens to surplus livestock