The tongue is the strongest muscle in the human body.

This is False ... the strongest skeletal muscles are the muscles of mastication ... Masseter
the strongest muscle is the cardiac muscle ....

This should be reworded: The tongue is the strongest muscle in the body in proportion.

The heart is the strongest muscle in the human body, due to the fact that it continuously works when your body is at rest.

This whole idea is incorrect, the tongue isn't an individual muscle, its actually made up of seventeen different muscles

Actually, its your eye muscles.

Actually, it IS the jaw muscle. Look at crocodiles, they can break turtles shells with their jaws. The heart is not the strongest, it's like saying that someone who lifts 1 kilogram of weight 100 times is stronger than a guy who can lift 100 kg. The tongue is not a muscle, it's 19 muscles.

The penis is the strongest muscle in the human body