The correct answer is option 4 i.e. 214.

The logic followed here is, the difference between two consecutive numbers are prime multiples of 7 starting from '2'.

18 + (7 × 2) = 18 + 14 = 32

32 + (7 × 3) = 32 + 21 = 53

53 + (7 × 5) = 53 + 35 = 88

88 + (7 × 7) = 88 + 49 = 137

137 + (7 × 11) = 137 + 77 = 214

So, '214' will complete the series.

Hence, the correct answer is 214.

The correct answer is option 3 i.e. 411.

The given series: 8, 21, 47, 99, 203, ?

8 × 2 + 5 = 16 + 5 = 21

21 × 2 + 5 = 42 + 5 = 47

47 × 2 + 5 = 94 + 5 = 99

99 × 2 + 5 = 198 + 5 = 203

203 × 2 + 5 = 406 + 5 = 411

Hence, the correct answer is 411.

The correct answer is Option 3 i.e. 23

The logic: Two series are combined alternatively to form the given series, in the first series '4' is added to get the next number starting from 22 and in the second series '5' is subtracted to get the next number starting from 29.

First series:

22 + 4 = 26

26 + 4 = 30

30 + 4 = 34

Second series:

29 - 5 = 24

24 - 5 = 19

19 - 5 = 14

So, '23' is the wrong term in the given series.

Hence, the correct answer is 23.

The correct answer is Option 1 i.e. IPR

Given series:

UGC, QJH, MMM, ?, ESW

U - 4 = Q, Q - 4 = M, M - 4 = I, I - 4 = E

G + 3 = J, J + 3 = M, M + 3 = P, P + 3 = S

C + 5 = H, H + 5 = M, M + 5 = R, R + 5 = W

Hence, the correct answer is IPR.

The correct answer is option 4 i.e. JCRV.

The logic is that the first letters of the series increase by +3, the second letters by +5, the third letters decrease by -5 and the fourth letters by -3.

A (1) + 3 = 4 = D; D (4) + 3 = 7 = G; G (7) + 3 = 10 = J

N (14) + 5 = 19 = S; S (19) + 5 = 24 = X; X (24) + 5 = 29 = 3 = C

G (7) - 5 = 2 = B; B (2) - 5 = -3 = 23 = W; W (23) - 5 = 18 = R

E (5) - 3 = 2 = B; B (2) - 3 = -1 = 25 = Y; Y (25) - 3 = 22 = V

Hence, JCRV is the correct answer.

The correct answer is option 2 i.e. B.

The pattern which follows here is:

The square present in the top right corner is getting shaded and unshaded alternately in each image.

+ and - are interchanging their positions diagonally with each other.

The two lines that are given in the bottom left corner are rotating in the clockwise direction along the corner of the images.

The circles given in the center of the image are decreasing by 1 in each image.

Hence, the correct answer is B.

The correct answer is option 2.

In this question, each figure is rotating at 90° in a clockwise direction, and a new larger semicircle is added outside the existing semicircles. 

Hence, the correct answer is Option 2.

The correct answer is option 2 i.e. 2.

All elements of the given figure i.e. triangle, circle, angle, and square move anticlockwise along the edges (corners) of the rectangle. So, in the next figure, the correct position of all elements will be the same as in option 2.

Hence, the correct answer is 2.

The correct answer is option 4 i.e. abde.

The sequence followed here is :

a b c/ a b c d/ a b c d e

Hence, the correct answer is abde.

The correct answer is option 3 i.e. Gas

We know that Petroleum is liquid, similarly, Nitrogen is gas.

Hence, the correct answer is Gas.