My mother is a professor .is an academic rank at universities 
Thats interesting! What does she teach? 
She's an  an expert in arts or sciences, a teacher of the highest rank.
Wow that's inspiring! how do you become a professor of the highest rank? 
academic ranks the word "professor", and particularly the unqualified word, only refers to the most senior academic position, 
Oh i see. And how long does it take to get to that level? 
It depends, In many universities, 'full professors' take on senior managerial roles, leading departments, research teams and institutes, and filling roles such as President
Fair enough, what else can you tell me about professors?  
Research and education are among the main tasks of tenured and tenure-track professors, with the amount of time spent on research