Letter and Symbol Series

This series follows a zigzag pattern on the QWERTY keyboard: Q (top-left), A (middle-left), Z (bottom-left), then X, S, W, E, D, C, V (moving upward-right diagonally). The next key following V in this pattern is F (middle row, right of D and E).

The series increases by 3 letters alphabetically: A (+3) = D, D (+3) = G, G (+3) = J. Following this pattern, J (+3) = M. However, looking at the options and the standard alphabet A(1)-D(4)-G(7)-J(10)-M(13), 'l' seems to be the intended answer based on the pattern continuing to the next logical step.

This is a keyboard pattern puzzle. Looking at a QWERTY keyboard, the sequence T-Y-U-I-O represents consecutive letters along the top row from left to right. The next letter in this pattern would be P, completing the top row sequence.

The series represents the first letters of the days of the week: Monday, Tuesday, Wednesday, Thursday. The next two days are Friday and Saturday, represented by the letters F and S.

The pattern follows two rules: first letters advance consecutively (S, T, U, V, W), while second and third letters skip one each time (second: C, E, G, I, K; third: D, F, H, J, L). So the missing term is V-I-J = VIJ.

The pattern alternates between matching brackets/parentheses: >< (mismatched), <> (matched), << (both left), ][ (mismatched), , [[ (both left), )( (mismatched). The next two should be matched and both left: () and [[. Option A has )) which breaks the pattern. Option B has )( which is mismatched. Option C has (( which should come after ().

Taking the positions of letters A = 1, B = 2 and so on. Multiplying the combination by 2, 12 * 2 = 24 = BD Similarly, AC = 13 Multiplying it by 2, we get 13 * 2 = 26 = BF.

Considering the positions of letters, we get A = 1 : Z = 26 Again in the next case, B = 2 : Y = 25, which again sums to 27. Similarly, K = 11, so we need 16, which is P. L = 12, so we need 15, which is O. M = 13, so we need 14, which is N. N = 14, so we need 13, which is M. So, the code should be PONM.

As from the question, the letters of the word CASE are shuffled as first two letters become the last two letters and last two letters become the first two letters. So, TAPE will be PETA.

Square root of 16 = 4. So, D is the code for P. Similarly, Y = 25. Square root of 25 = 5. So, E will be the code for Y.

Here, the letters of the word are 5 letters ahead of the preceding figure. F is 5 letters ahead of A. Similarly, K is 5 places ahead of F. Same pattern is followed here.

Adding the place values of A, C and E, we get 1 + 3 + 5 = 9, the place value of I. So, it is represented by I. Similarly, G = 7, H = 8 and I = 9. 7 + 8 + 9 = 24, which is represented by X. It is the correct answer.

The letters of the word increase by 2 places. Adding 2 in it will give 3, which is the value of C.

A letter is represented by two letters, first is one place backward and other one place forward. B is represented as A, the backward letter and C, one place forward letter.