Yesterday a friend came to visit, well, in the process of conversation it turned out that he had holy water on the balcony and at minus 20 it did not freeze, but only became cold. The Holy Water does not freeze.
Or I was spending on the freezing and it smells!

Unfortunately, it has nothing to do with holiness. If the water is very clean (or rather even distilled) and stands in a bowl with perfectly smooth walls, then it may just be overcooled water. Under such conditions, the water does not freeze because there are no crystallization centers from which it could freeze. Just warn your acquaintance not to put your hands in her. His arm will instantly become the centre of crystallization and in a fraction of a second will freeze into the ice.