Technically no. A bala shark is just a small freshwater fish that somewhat resembles a shark.
All sharks are fish which makes the Whale Shark the largest fish in the world.
If Hyenas are actually sharks, I don't know, but sharkss have beaten some dogs and birds on intelligence tests.
Theres a couple of different reasons for their name. Fishermen would often see them following the boats for scraps,with their heads poking out of the water 'begging' for food like dogs. And the other...
Sharks are a type of fish