Who has become the first Indian fighter to become MMA World Champion?

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.
To make atonement for one's sins

निम्न में से भीति - भित्ति' शब्द-युग्म का सही अर्थ - भेद है –

A is as efficient as B and C together. Working together A and B can complete a work in 36 days and C alone can complete it in 60 days. A and C work together for 10 days. B alone will complete the remaining work in:

Directions (11-20): In the passage given below, some of the words from 11-20 have been left out. First read the passage over and try to understand what it is about. Then fill in the blanks with the help of the alternatives given. Mark your answer.
Civilisation means outward (11) whereas culture means inward perfection. We may be (12) today, but we are not cultured. We have trains, aeroplanes and all modern modes and (13). This is (14) on the road of materialism but we have lost our finer emotions. Civilisation has (15) mystery and romance out of the heart of nature and (16) her beauty and magic. It has placed (17) power in the hands of man, making him a (18). With a single atom or hydrogen bomb, he can rain death and (19) on millions of innocent creatures. Thus, he is out to (20) himself with his own hands. 

Choose the correct option for (16). 

The sides of a triangle are in the ratio 2 : 3 : 4. The perimeter of the triangle is 18 cm. The area (in cm²) of the triangle is

Parts of the following sentence are given as options. Identify the segment that contains a grammatical error.

Craze for a thing that are not easily available in our country is a common phenomenon.

According to the announcement which country has hosted the Asian Youth Games 2021?