solve the puzzle one :- its really very urgent meritnation expert

Q.i) What does the bar graph show ?

   ii) In which over did the batsman score maximum runs?

   iii) In which over did the batsman score minimum runs ?

   iv) In which over were 8 runs scored ?

   v) How many runs were scored in the first first five over's?

Puzzle :- 
     Mr. Mathews has 8 black gloves and 10 brown gloves in his closet. He blindly picks up some gloves from the closet. What is the minimum number of gloves Mr. Mathews will have to pick to same color .