To whom was Bal Gangadhar Tilak referred to as the "Diamond of India"?

In each of the following questions, sentences are given with blanks to be filled in with an appropriate word (s). Four alternatives are suggested for each question. Choose the correct alternative out of the four and indicate your choice for the correct answer.

Priya ______ karate class every Saturday.

According to the Bloomberg Billionaires Index report, who has become Asia's richest man?

The cost price of an article is Rs x. It is marked up by 200%. It is sold at Rs. 540 after giving 25% discount. What is the value of x (in Rs)? 

Inspiration is the art of generating interest in a student, whose statement is this.

The system of judicial review in in Indian constitution adopted from

The position of Manoj in any class of 64 students is 21th from the top. Tell what will be his position from the bottom?