Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.
14 : 196 :: 16 : 256 :: 18 : ?
All 30 students are standing in a straight line facing the north. Amit is at 12th position from the extreme left end. What is the position of Amit when considered from the extreme right end?