Question: I have a tree that has shiny leaves and fruit that look like olives. Do you have any idea what it might be?

Answer: You probably have a jujube (Ziziphus jujuba). The fruits are about an inch long, green, then tan and brown. They have the consistency of a mealy apple. Two even more identifying features, however: the leaves have parallel veins (running from end-to-end, not side-to-side–almost all other trees have pinnate, or feather-like, vein arrangement), and the limbs have an unusual zig-zag growth pattern.