Ever heard of Schrödinger's cat? It's a paradoxical thought experiment in which the unknown status of something causes it to hold not one status, but two. Ultimately, if there is a cat in an unopened box, which also contains a sealed caspule of poison set to release at an unknown time, we can say the cat is simultaneously alive and dead (as long as we continue to leave the box unopened).
However, once we open the box, we will discover the status of the cat within, and the cat will be either alive or dead, and not simultaneously both.