King cobra

the king cobra is also the world’s longest venomous snake.King Cobra (Offiophagus Hannah) provides enough neurotoxins to kill Asian elephants, as well as mentally cut almost 50 percent of people.

Tiger snake

This deadly snake (Notechis scutatus) inhabits southern Australia and Tasmania, and kills victims .these snakes vary greatly in size depending on their preferred type of prey.

Black mamba

The fastest serpent in the world is also the worst. Black Mamba (Dendroopis polelipes) can go at speeds of 12.5 miles per hour (5.5 meters per second), and can deeply kill a man within less than 30 minutes.