In the following figure small square represents the persons who know English, triangle to those who know Marathi, big square to those who know Telugu and circle to those who know Hindi. In the different regions of the figures from 1 to 12 are given.

1. 

How many persons can speak English and Hindi both the languages only ?

A. 5
B. 8
C. 7
D. 18

2. 

How many persons can speak Marathi and Telugu both ?

A. 10
B. 11
C. 13
D. None of these

3. 

How many persons can speak only English ?

A. 9
B. 12
C. 7
D. 19

4. 

How many persons can speak English, Hindi and Telugu ?

A. 8
B. 2
C. 7
D. None of these

5. 

How many persons can speak all the languages ?

A. 1
B. 8
C. 2
D. None