Puzzling

I’m posting on behalf of a group investigating a rather unusual chess/cryptographic/hermetic puzzle, as part of a larger mystery called Magnum Opus (The Great Work, Philosopher's Stone). This is from the video game "Gothic Remake". We had to scour the world for these hidden pieces, place them on a grid based on their coordinates, and supposedly analyze the images for hidden m...

This follows The Service Lift and the Levania floor 7½ part The Floor That Isn't There. Congratulations to @Franck Dernoncourt for solvi...

You are going to build 8 train stations and the railroads with it in an area. But you are asked to build these stations and their railroads in a very efficient way where there has to be the least number of intersection points on the railroad for the safety and most relaxed schedule and these all stations are also needed to be connected directly to each other as well. So;

A game has three boxes:

What is the probability that the remaining coin in your box is also gold?

Explain why your answer is correct.

One for each hour, 1000 demons bathe

Last from a comic, first has water swathe

What is this set?