Can the brain eating amoeba kill me without water?

Body composition: Body cells are more than 50% water so if you unfortunately get infected with a very nasty organism (such as the one iou mentioned) you are done for unless you realize it quickly and are treated quickly. All life forms that we know of need water to survive. That is why extraterrestial probes search for signs of water and planets in the "sweet" zone of temps (32-212F).

No: Naegleria fowleri is transmitted via water into the nose to lead to Primary Amebic Meningoencephalitis.