Which of the following statements is/are correct about National Family Health Survey (NFHS)?

What is the minimum age requirement to subscribe to the VPBY scheme? 

When a number is increased by 30% then the number obtained is 51 less than thrice the original number. Find the original number.

With reference to term 'White Good' seen sometime in news, which of the following statements is correct

Ratio of present ages of A and B is 5:7, respectively. C who is 3 years older than A will become 30 years older after 12 years. Find the present age of B.

Consider the following statements:

1. The Indian Parliament is not sovereign, and the legislation passed by it is subject to judicial review.

The employer shall arrange to pay the amount of gratuity within days from the date it becomes payable to the person to whom the gratuity is payable.

Ratio of length to width of a rectangular field is 8:3. If the perimeter of the field is 330 metres, then find the area (in m²) of the field.

The Union Housing and Urban Affairs Ministry has extended the deadline of its Smart Cities Mission to ____________ .

Consider the following statements:

1. The Parliament can increase the number of Judges of the Supreme Court and High courts.