1. Principles of Geometry   Anton Von Leeuwenhock   Sir J. J. Thompson   Christian Barnard   Euclid   Hint Half-n-half Clue   2. Heart Transplant Surgery   Sir Humphry Davy   Christian Barnard   Sigmund Freud   Sir J. J. Thompson   Half-n-half Clue   3. Hydrogen   Karl Wilheim Scheele   Henry Cavendish   William Harvey   Enrico Fermi   Half-n-half Clue   4. Psychoanalysis   Sir Fredrick Grant Banting   Sigmund Freud   Ronald Ross   Neels H. D. Bohr   Half-n-half Clue   5. Sodium   Sir Humphry Davy   Enrico Fermi   Henry Cavendish   Louis Pasteur   Half-n-half Clue   6. Theory of Relativity   Neels H. D. Bohr   Hans Christian   Albert Einstein   Gregor Mendel   Half-n-half Clue   7. Potassium   Enrico Fermi   Sir Humphry Davy   Euclid   Sir Isaac Newton   Half-n-half Clue