T'Challa (Earth-616)
Strength level
Black Panther has demonstrated exceptional feats of strength like wrestling down a Rhino and breaking its neck, knocking out a Polar Bear, stopping a Elephant's charge, sending
Namor flying with a kick despite his opponent's superhuman durability, destroying a water mill by bracing himself on the ground and flexing his muscles, even killing a T-Rex dinosaur while using a palm tree as a catapult while in a weakened state.
He's classed at the peak of human potential. Marvel handbooks class him strong enough to lift 800 lbs. As with all his powers/abilities, his strength has been enhanced by the Panther Goddess, but to what extent is unknown.
Weaknesses
In spite of his enhancements, T'Challa is still an ordinary human being. He is susceptible to some of the same vulnerabilities other normal humans are. Due to his heightened senses, bright lights, loud noises, & strong smells can potentially overwhelm him.
He's peak human just like Batman.... UNTIL HE PUTS ON HIS SUIT.