Subject: How super do you have to be, to be superhuman?

In comic books, Captain America is described as being 'peak Human', capable of 
snatching around 800 pounds of weight overhead.  However, is that really 'peak 
Human'?  Could a 6'2, 240 pound male in peak health lift more, especially in 
light of how people in distress have done such things as lift cars, and other 
heavy objects in order to save lives.  I saw a man lift a helicopter, once, 
even.

Re: How super do you have to be, to be superhuman?