Explanation:

• Massachusetts Institute of Technology (MIT) of the United States has achieved the top spot.
• Stanford University, Harvard University, California Institute of Technology and UK’s Oxford University took the first 5 positions respectively.
• The QS World University Rankings evaluates the institutes on six metrics. These include academic reputation (40 percent weightage), employer reputation (10 percent), faculty/student ratio (20 percent), citations per faculty (20 percent), international faculty ratio/student ratio (5 percent each).