Non-examples of mixture?
I am not sure what the purpose is of asking for a non-example. However, there are lots of things that are not compounds. Elements are not compounds. Elvis Presley was not a compound (although there were various compounds in his body). Truth, justice, and the American way are not compounds. Sunlight is not a compound.
A mixture is composed of substances that are not chemically combined, and which do not have a definite composition. A homogeneous mixture is uniform throughout. A solution is a homogeneous mixture. A heterogeneous mixture is not uniform throughout. Examples of a heterogeneous mixture are granite or beef stew.