How many pentathlon events are competed in modern pentathlon?

Five

Which marine creature famously clings to whales and sharks, feeding on their parasites and scraps? In ice hockey, what term refers to a game going beyond regulation time? What is the name of Hank Pym's daughter who becomes a superheroine in the MCU? What Italian city is famous for its canals? Which animal species holds hands while sleeping to prevent drifting apart?