The letters in the first row follow the sequence +5, +7.

The letters in the second row follow the sequence +6, +8. In the third row, the first letter G moves 7 steps forward to give the second letter N. Clearly, the missing letter will be 9 steps ahead of N i.e. W.

Each row consists of alternate letters. Thus, first row contains letters V, X, Z ; third row caontains letter P, R, T.
So, the missing letter is E.
The numbers in each column form an arithmetic series . Thus, first column contains number 4, 5, 6. The second column conatains numbers 2, 3, 4.
The numbers in each column will form the series 9, 12, 15.
So, the answer is E12.

Putting A = 1, B = 2,…, Z = 26, we get the given matrix as

Clearly, 1st column + 2nd column = 3rd column.
Now, 5 + 13 = 18.
So, the missing letter is the 18th letter of the alphabet, which is R.

Going clockwise starting with 6 pattern is 6=2²+2, 12 = 3²+3,
20 =4²+4, 30 =5²+5, 42 =6²+6
56 = 7²+7, 72=8²+8, so missing number is 9²+9=90

Coding, A = 1, B = 2, C = 3, ……. M = 13,….. Y = 25, Z = 26.

First Column
F-A = 6-1 = 5 = E.

Second Column 
W-J = 23-10 = 13 = M.

Third Column 
O-K = 15-11 = 4 = D.

The pattern is: (17-7)²+(7-5)²=104,(32-24)²+(17-11)²=100.
So, missing number =(52-48)²+(57-49)²=80

Starting with the A on the left hand side, move around the shape in a clockwise spiral towards the centre.

Letters advance through the alphabet in steps of 4, 5 then 6, repeating this pattern all the way around

Taking the numerical value of each letter, they follow the sequence of Prime Numbers.

The letters in the first row form a series C, D, E (a series of consecutive letters). The letters in the second row from a series I, K, M (a series of alternate letters). Similarly, the letters in the third row will form the series D, G, J (a series in which each letters is 3 steps ahead of the previous one). So, the missing letter is G. Also, the number in the second column is equal to the product of the numbers in the first and third columns. So, missing number is (4 × 7) i.e. 28. Thus, the answer is 28G

The letters in the first row follow the sequence +5, +7.

The letters in the second row follow the sequence +6, +8.
In the third row, the first letter G moves 7 steps forward to give the second letter N.
Clearly, the missing letter will be 9 steps ahead of N i.e. W

Positions of alphabets (A to Z) is(1-26) J+E=10+5=15; J+N=10+14=24;E+L=5+12=17.
Value of C is 3 and value of missing letter is (29-3) is 26. Letter would be Z

Positions of alphabets (A to Z) is (1-26) we have:
In the first column, E-A=5-1=4=D.
In the second column, J-C=10-3=7=G.
So, in the third column, missing letter =O-B=15-2=13=M
So the answer is option B