Explore recent experimental observations and theoretical developments in particle physics through this colloquium lecture from Tel Aviv University's Marek Karliner, focusing on unusual hadrons that challenge traditional quark-antiquark mesons and three-quark baryons models. Delve into the fascinating world of exotic states containing both heavy and light quarks, examining tetraquark and pentaquark hadronic molecules, doubly heavy baryons, and the groundbreaking discovery of a four-quark state that maintains stability under strong interactions.