Kidney stones are primarily composed of which substance?

Vulnerable

Match the idioms in List-I with their meanings in List-II:

Fraudulent - The insurance agent who visited the office yesterday was a 'fraudulent' guy.

A desire to cause harm to another person

Select the most appropriate antonym of the given word.

Emancipate

Commotion

In the following question select the answer pair that expresses a relationship most similar to that expressed in the capitalised pair.

Select the most appropriate synonym of the given word. 

ESTIMATE

Select the most appropriate Synonym of the given word.

  Callous

In the following question select the answer pair that expresses a relationship most similar to that expressed in the capitalised pair.