The Central Government issued instructions to link the mobile numbers of all existing mobile phone users in the country with which form?

If Q is the brother of K. S is sister of K, and T is the sister of S, so let's say K, what is the relation of T? 

(DIRECTIONS 17): In the following questions, you have brief passages. Read the passages carefully and choose the best answer to each question out of the four alternatives.
Indian airlines had no positive response to the incident occurred in the failure of aeroplane engine.It was 1989 ,Indian airline B059 got crashed in the middle of the Indian ocean,205 passengers were died.There were no clues about the B059 , some says that it got crashed but some said it got lost.Passengers relative were worried about their dear ones. Government decleared the issue of B059 as a priority,Indian navy were given responsibility to find the B059 but nothing was found .After a year some fishermen found the black box of B059, which confirms about the crash of Indian aeroplane B059 due to engine failure.
Who got the responsibility to find out clues about B059?

The diameter of a toy wheel is 14 cm, what is the distance travelled by it in 15 revolutions? 

Direction: Select the related word from the given alternatives.

Procession: Route :: Earth:?

Two trains 108 m and 112 m in length are running towards each other on the parallel lines at a speed of 45 km/hr and 54 km/hr respectively. To cross each other after they meet, it will take