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Coding–Decoding - Letter, Number, Substitution, Mixed Coding, Decoding Messages - MCQ Questions with Answers for Competitive Exams 2025

Practice important Coding–Decoding questions for competitive exams like UPSC, SSC CGL, SSC CHSL, Banking (IBPS PO, IBPS Clerk, SBI), Railway (RRB NTPC, Group D), and State PSC. Each question includes detailed explanations in Hindi & English to help you understand the concepts thoroughly. Click "View Answer" to see the correct option and explanation.

1. यदि HAPPY → IBQQZ, तो SAD → ? / If HAPPY → IBQQZ, then SAD → ?

2. यदि GREEN → H SFFO, तो BLUE → ? / If GREEN → HSFFO, then BLUE → ?

3. यदि PEACE → QFBDF, तो WAR → ? / If PEACE → QFBDF, then WAR → ?

4. यदि WATER → XB UFS, तो MILK → ? / If WATER → XBUFS, then MILK → ?

5. यदि FISH → GJTI, तो MEAT → ? / If FISH → GJTI, then MEAT → ?

6. यदि BREAD → CSFBF, तो CAKE → ? / If BREAD → CSFBF, then CAKE → ?

7. यदि MUSIC → NV TJD, तो DANCE → ? / If MUSIC → NVTJD, then DANCE → ?

8. यदि CAT = 24, तो DOG = ? / If CAT = 24, then DOG = ?

9. यदि BOX = 45, तो PEN = ? / If BOX = 45, then PEN = ?

10. यदि HOME = 122, तो COME = ? / If HOME = 122, then COME = ?

11. यदि BAT = 28, तो BALL = ? / If BAT = 28, then BALL = ?

12. यदि HAND = 32, तो FINGER = ? / If HAND = 32, then FINGER = ?

13. यदि GIRL = 40, तो BOY = ? / If GIRL = 40, then BOY = ?

14. यदि KING = 47, तो QUEEN = ? / If KING = 47, then QUEEN = ?

15. यदि TEA = 26, तो COFFEE = ? / If TEA = 26, then COFFEE = ?

16. यदि DOOR = 52, तो WINDOW = ? / If DOOR = 52, then WINDOW = ?

17. यदि APPLE = 50, तो MANGO = ? / If APPLE = 50, then MANGO = ?

18. यदि NEPAL = 50, तो INDIA = ? / If NEPAL = 50, then INDIA = ?

19. यदि FISH = 42, तो MEAT = ? / If FISH = 42, then MEAT = ?

20. यदि SUN = 54, तो STAR = ? / If SUN = 54, then STAR = ?

21. यदि DOCTOR = 83, तो ENGINEER = ? / If DOCTOR = 83, then ENGINEER = ?

22. यदि EARTH = 52, तो MARS = ? / If EARTH = 52, then MARS = ?

23. यदि KINGDOM = 77, तो EMPIRE = ? / If KINGDOM = 77, then EMPIRE = ?

24. यदि MOTHER = 72, तो FATHER = ? / If MOTHER = 72, then FATHER = ?

25. यदि SCHOOL = 77, तो COLLEGE = ? / If SCHOOL = 77, then COLLEGE = ?

26. यदि BLOOD = 61, तो WATER = ? / If BLOOD = 61, then WATER = ?

27. यदि MUSIC = 73, तो DANCE = ? / If MUSIC = 73, then DANCE = ?

28. यदि CHAIR = 45, तो TABLE = ? / If CHAIR = 45, then TABLE = ?

29. यदि WATCH = 50, तो CLOCK = ? / If WATCH = 50, then CLOCK = ?

30. यदि FOUR = 63, तो TEN = ? / If FOUR = 63, then TEN = ?

31. यदि THREE = 70, तो NINE = ? / If THREE = 70, then NINE = ?

32. यदि ONE = 34, तो TWO = ? / If ONE = 34, then TWO = ?

33. यदि ELEVEN = 63, तो TWELVE = ? / If ELEVEN = 63, then TWELVE = ?

34. यदि THREE = 62, तो SEVEN = ? / If THREE = 62, then SEVEN = ?

35. यदि SIX = 52, तो SEVEN = ? / If SIX = 52, then SEVEN = ?

36. यदि EIGHT = 60, तो NINE = ? / If EIGHT = 60, then NINE = ?

37. यदि TEN = 39, तो FIVE = ? / If TEN = 39, then FIVE = ?

38. यदि MONDAY = 77, तो FRIDAY = ? / If MONDAY = 77, then FRIDAY = ?

39. यदि JANUARY = 88, तो FEBRUARY = ? / If JANUARY = 88, then FEBRUARY = ?

40. यदि MARCH = 65, तो JUNE = ? / If MARCH = 65, then JUNE = ?

41. यदि APRIL = 64, तो MAY = ? / If APRIL = 64, then MAY = ?

42. यदि JULY = 72, तो DECEMBER = ? / If JULY = 72, then DECEMBER = ?

43. यदि DAY = 30, तो NIGHT = ? / If DAY = 30, then NIGHT = ?

44. यदि SWEET = 90, तो SUGAR = ? / If SWEET = 90, then SUGAR = ?

45. यदि PEN = 32, तो PENCIL = ? / If PEN = 32, then PENCIL = ?

46. यदि RAT = 39, तो MOUSE = ? / If RAT = 39, then MOUSE = ?

47. यदि BIRD = 36, तो ANIMAL = ? / If BIRD = 36, then ANIMAL = ?

48. यदि MOON = 57, तो SUN = ? / If MOON = 57, then SUN = ?

49. यदि CAT = 24, तो DOG = ? / If CAT = 24, then DOG = ?

50. यदि BOX = 45, तो PEN = ? / If BOX = 45, then PEN = ?

Important General Knowledge Questions | Coding–Decoding GK in Hindi

Coding–Decoding - Letter, Number, Substitution, Mixed Coding, Decoding Messages - MCQ Questions with Answers for Competitive Exams 2025

1. यदि HAPPY﻿ → IBQQZ﻿, तो SAD﻿ → ? / If HAPPY﻿ → IBQQZ﻿, then SAD﻿ → ?

2. यदि GREEN﻿ → H SFFO﻿, तो BLUE﻿ → ? / If GREEN﻿ → HSFFO﻿, then BLUE﻿ → ?

3. यदि PEACE﻿ → QFBDF﻿, तो WAR﻿ → ? / If PEACE﻿ → QFBDF﻿, then WAR﻿ → ?

4. यदि WATER﻿ → XB UFS﻿, तो MILK﻿ → ? / If WATER﻿ → XBUFS﻿, then MILK﻿ → ?

5. यदि FISH﻿ → GJTI﻿, तो MEAT﻿ → ? / If FISH﻿ → GJTI﻿, then MEAT﻿ → ?

6. यदि BREAD﻿ → CSFBF﻿, तो CAKE﻿ → ? / If BREAD﻿ → CSFBF﻿, then CAKE﻿ → ?

7. यदि MUSIC﻿ → NV TJD﻿, तो DANCE﻿ → ? / If MUSIC﻿ → NVTJD﻿, then DANCE﻿ → ?

8. यदि CAT﻿ = 24, तो DOG﻿ = ? / If CAT﻿ = 24, then DOG﻿ = ?

9. यदि BOX﻿ = 45, तो PEN﻿ = ? / If BOX﻿ = 45, then PEN﻿ = ?

10. यदि HOME﻿ = 122, तो COME﻿ = ? / If HOME﻿ = 122, then COME﻿ = ?

11. यदि BAT﻿ = 28, तो BALL﻿ = ? / If BAT﻿ = 28, then BALL﻿ = ?

12. यदि HAND﻿ = 32, तो FINGER﻿ = ? / If HAND﻿ = 32, then FINGER﻿ = ?

13. यदि GIRL﻿ = 40, तो BOY﻿ = ? / If GIRL﻿ = 40, then BOY﻿ = ?

14. यदि KING﻿ = 47, तो QUEEN﻿ = ? / If KING﻿ = 47, then QUEEN﻿ = ?

15. यदि TEA﻿ = 26, तो COFFEE﻿ = ? / If TEA﻿ = 26, then COFFEE﻿ = ?

16. यदि DOOR﻿ = 52, तो WINDOW﻿ = ? / If DOOR﻿ = 52, then WINDOW﻿ = ?

17. यदि APPLE﻿ = 50, तो MANGO﻿ = ? / If APPLE﻿ = 50, then MANGO﻿ = ?

18. यदि NEPAL﻿ = 50, तो INDIA﻿ = ? / If NEPAL﻿ = 50, then INDIA﻿ = ?

19. यदि FISH﻿ = 42, तो MEAT﻿ = ? / If FISH﻿ = 42, then MEAT﻿ = ?

20. यदि SUN﻿ = 54, तो STAR﻿ = ? / If SUN﻿ = 54, then STAR﻿ = ?

21. यदि DOCTOR﻿ = 83, तो ENGINEER﻿ = ? / If DOCTOR﻿ = 83, then ENGINEER﻿ = ?

22. यदि EARTH﻿ = 52, तो MARS﻿ = ? / If EARTH﻿ = 52, then MARS﻿ = ?

23. यदि KINGDOM﻿ = 77, तो EMPIRE﻿ = ? / If KINGDOM﻿ = 77, then EMPIRE﻿ = ?

24. यदि MOTHER﻿ = 72, तो FATHER﻿ = ? / If MOTHER﻿ = 72, then FATHER﻿ = ?

25. यदि SCHOOL﻿ = 77, तो COLLEGE﻿ = ? / If SCHOOL﻿ = 77, then COLLEGE﻿ = ?

26. यदि BLOOD﻿ = 61, तो WATER﻿ = ? / If BLOOD﻿ = 61, then WATER﻿ = ?

27. यदि MUSIC﻿ = 73, तो DANCE﻿ = ? / If MUSIC﻿ = 73, then DANCE﻿ = ?

28. यदि CHAIR﻿ = 45, तो TABLE﻿ = ? / If CHAIR﻿ = 45, then TABLE﻿ = ?

29. यदि WATCH﻿ = 50, तो CLOCK﻿ = ? / If WATCH﻿ = 50, then CLOCK﻿ = ?

30. यदि FOUR﻿ = 63, तो TEN﻿ = ? / If FOUR﻿ = 63, then TEN﻿ = ?

31. यदि THREE﻿ = 70, तो NINE﻿ = ? / If THREE﻿ = 70, then NINE﻿ = ?

32. यदि ONE﻿ = 34, तो TWO﻿ = ? / If ONE﻿ = 34, then TWO﻿ = ?

33. यदि ELEVEN﻿ = 63, तो TWELVE﻿ = ? / If ELEVEN﻿ = 63, then TWELVE﻿ = ?

34. यदि THREE﻿ = 62, तो SEVEN﻿ = ? / If THREE﻿ = 62, then SEVEN﻿ = ?

35. यदि SIX﻿ = 52, तो SEVEN﻿ = ? / If SIX﻿ = 52, then SEVEN﻿ = ?

36. यदि EIGHT﻿ = 60, तो NINE﻿ = ? / If EIGHT﻿ = 60, then NINE﻿ = ?

37. यदि TEN﻿ = 39, तो FIVE﻿ = ? / If TEN﻿ = 39, then FIVE﻿ = ?

38. यदि MONDAY﻿ = 77, तो FRIDAY﻿ = ? / If MONDAY﻿ = 77, then FRIDAY﻿ = ?

39. यदि JANUARY﻿ = 88, तो FEBRUARY﻿ = ? / If JANUARY﻿ = 88, then FEBRUARY﻿ = ?

40. यदि MARCH﻿ = 65, तो JUNE﻿ = ? / If MARCH﻿ = 65, then JUNE﻿ = ?

41. यदि APRIL﻿ = 64, तो MAY﻿ = ? / If APRIL﻿ = 64, then MAY﻿ = ?

42. यदि JULY﻿ = 72, तो DECEMBER﻿ = ? / If JULY﻿ = 72, then DECEMBER﻿ = ?

43. यदि DAY﻿ = 30, तो NIGHT﻿ = ? / If DAY﻿ = 30, then NIGHT﻿ = ?

44. यदि SWEET﻿ = 90, तो SUGAR﻿ = ? / If SWEET﻿ = 90, then SUGAR﻿ = ?

45. यदि PEN﻿ = 32, तो PENCIL﻿ = ? / If PEN﻿ = 32, then PENCIL﻿ = ?

46. यदि RAT﻿ = 39, तो MOUSE﻿ = ? / If RAT﻿ = 39, then MOUSE﻿ = ?

47. यदि BIRD﻿ = 36, तो ANIMAL﻿ = ? / If BIRD﻿ = 36, then ANIMAL﻿ = ?

48. यदि MOON﻿ = 57, तो SUN﻿ = ? / If MOON﻿ = 57, then SUN﻿ = ?

49. यदि CAT﻿ = 24, तो DOG﻿ = ? / If CAT﻿ = 24, then DOG﻿ = ?

50. यदि BOX﻿ = 45, तो PEN﻿ = ? / If BOX﻿ = 45, then PEN﻿ = ?

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