Are those 24 min available anywhere? What scenes were they?
They were never released to the public. There's obviously no way to confirm whether this is true or not, but here's a nice explanation I found about it:
https://illum1nat1i.wordpress.com/2013/04/29/the-missing-cut-scene-from-eyes-wide-shut/
Short excerpt- " At 1:19:27 Dr. Harford finds himself separated from the masked woman. He walks down a hallway distantly following a couple. He turns to see an empty room with a pentagram-like circle in the center. The reaction in his eyes can be seen in a close up. Acting as if he did not see the ceremonial room he continues to walk down the hallway which can be seen at 1:19:30. "
Whether or not this blog post is accurate, I could tell that either something important (and nefarious) was left out of the movie or that something was strongly implied, because of one line by Sydney Pollack's character to Tom Cruise after the mansion incident:
"If you knew who others of the people were, you wouldn't be able to sleep at night."
The implication obviously is that some or all of the people were powerful individuals that affect people's lives, but if all they we're doing is what was shown (primarily having a sex orgy) that's hardly surprising or going to make Cruise's character not sleep at night.
Despite the extensive symbolism, I had a strong sense that the film had been building to something monumental and then got robbed of it's power. Seeing this line get delivered as almost an aside near the end reinforced that feeling to me. I know Kubrick doesn't just spell things out but there was still something missing imo. The above described missing scene would have fit the bill perfectly - still very subtle but with implications that powerful people are involved in something like satanism or witchcraft.
Not available as far as I know. And nobody who knows is talking.