Q1. AZ, BY, CX, DW, ?

• A) EV
• B) EU
• C) FV
• D) EW

Answer: A — Pairs: A+Z, B+Y, C+X, D+W → E+V = EV.

Q2. Z, X, V, T, R, ?

• A) P
• B) O
• C) Q
• D) N

Answer: A — Alternate letters descending: Z,X,V,T,R → P.

Q3. A, D, G, J, M, ?

• A) P
• B) O
• C) Q
• D) N

Answer: A — +3 each: A(1),D(4),G(7),J(10),M(13) → P(16).

Q4. AB, CD, EF, GH, ?

• A) IJ
• B) IK
• C) HI
• D) JK

Answer: A — Consecutive letter pairs: AB,CD,EF,GH → IJ.

Q5. 1A, 2B, 3C, 4D, ?

• A) 5E
• B) 5F
• C) 6E
• D) 4E

Answer: A — Number increments +1, letter increments +1: 5E.

Q6. ACE, BDF, CEG, DFH, ?

• A) EGI
• B) EHI
• C) EGJ
• D) FGI

Answer: A — Each letter in triplet +1: C→D→E, E→F→G, G→H→I → EGI.

Q7. ZA, YB, XC, WD, ?

• A) VE
• B) VF
• C) UE
• D) WE

Answer: A — First letter descends (Z,Y,X,W,V); second ascends (A,B,C,D,E) → VE.

Q8. B, D, G, K, P, ?

• A) V
• B) U
• C) W
• D) X

Answer: A — Differences: 2,3,4,5,6 → P+6=V.

Q9. M, N, P, S, W, ?

• A) B
• B) A
• C) C
• D) D

Answer: A — Differences: +1,+2,+3,+4,+5 → W+5=B (wrapping: W=23, 23+5=28=B(2) in 26-letter cycle).

Q10. Y, W, T, P, K, ?

• A) E
• B) F
• C) G
• D) D

Answer: A — Differences: –2,–3,–4,–5,–6 → K(11)–6=E(5).

Q11. AZ, CX, EV, GT, ?

• A) IR
• B) IS
• C) HR
• D) IQ

Answer: A — First letter +2: A,C,E,G,I. Second letter –2: Z,X,V,T,R → IR.

Q12. 2B, 4D, 6F, 8H, ?

• A) 10J
• B) 10I
• C) 9J
• D) 10K

Answer: A — +2 for number, +2 for letter: 10J.

Q13. DEF, GHI, JKL, MNO, ?

• A) PQR
• B) PQS
• C) OPQ
• D) QRS

Answer: A — Consecutive triplets of letters: PQR.

Q14. A1Z, B2Y, C3X, D4W, ?

• A) E5V
• B) E5U
• C) F5V
• D) E6V

Answer: A — Letter+1, number+1, reverse letter–1: E5V.

Q15. BC, FG, JK, NO, ?

• A) RS
• B) ST
• C) QR
• D) RT

Answer: A — Each pair skips 3 letters: BC(2-3), FG(6-7), JK(10-11), NO(14-15), RS(18-19).

Q16. J, F, M, A, M, J, J, A, ?

• A) S
• B) O
• C) N
• D) D

Answer: A — Months: Jan,Feb,Mar,Apr,May,Jun,Jul,Aug → Sep(S).

Q17. P3C, R5F, T7I, V9L, ?

• A) X11O
• B) X10O
• C) Y11O
• D) X11N

Answer: A — +2 letter, +2 number, +3 letter: X(24), 11, O(15) = X11O.

Q18. BEH, KNQ, TWZ, ?

• A) CFI
• B) CDG
• C) CEI
• D) DFI

Answer: A — Each triplet: +3 internally, +9 to start next: T+9=C, W+9=F... wait: B(2),E(5),H(8)→+9→K(11),N(14),Q(17)→+9→T(20),W(23),Z(26)→+9→C(3)(26+9=35-26=9=I? No. C=3,F=6,I=9 = CFI.

Q19. A2, C4, E6, G8, ?

• A) I10
• B) H10
• C) I9
• D) J10

Answer: A — Letters +2, numbers +2: I,10 → I10.

Q20. Z1, Y2, X4, W8, ?

• A) V16
• B) V15
• C) U16
• D) V14

Answer: A — Letters –1: Z,Y,X,W,V. Numbers ×2: 1,2,4,8,16 → V16.