1 .Directions : In questions no. 1 to 8 select the one which is different from other three alternatives
(A) Influenza (B) Scurvy
(C) Rickets (D) Night-blindness
10 .A man showed at boy next to him and said– "He is the son of my wife's sister-in-law, but I am the only child of my parents." How is my son related to him ?