SSC GD Constable Coding Decoding

In a certain code, each letter is replaced by the letter that comes 3 positions after it in the English alphabet. For example, A is coded as D, B is coded as E, and so on. If the word 'CAT' is coded using this rule, what is the code?

In a code language, vowels (A, E, I, O, U) are replaced by the next vowel in sequence (A→E, E→I, I→O, O→U, U→A), and consonants remain unchanged. What is the code for the word 'HOUSE'?

In a code, each digit is replaced by (10 - digit). For example, 3 is coded as 7, and 5 is coded as 5. If the number 2468 is coded using this rule, what is the code?

In a certain code, the position of each letter in the word is swapped with the position of the letter that is equidistant from the end. For example, in the word 'LISTEN' (6 letters), L (position 1) swaps with N (position 6), I (position 2) swaps with E (position 5), and S (position 3) swaps with T (position 4). What is the code for 'FRIEND'?

In a code, consonants are replaced by the next consonant in the English alphabet, and vowels are replaced by the previous vowel in the English alphabet (A→U, E→A, I→E, O→I, U→O). What is the code for 'SMILE'?

In a certain code, each letter is replaced by the letter that comes 3 positions after it in the English alphabet. For example, A is coded as D, B is coded as E, and so on. If the word 'HELP' is coded using this rule, what will be the code?

In a certain code, each letter is replaced by the letter that comes 3 positions after it in the English alphabet. For example, A → D, B → E, and so on. Z wraps around to C. Using this rule, what is the code for the word 'LOGIC'?

In a certain code, each letter is replaced by a symbol based on this rule: vowels (A, E, I, O, U) become ★, and consonants become ◆. Additionally, if a consonant is in the first half of the alphabet (B–M), it becomes ◆, and if it is in the second half (N–Z), it becomes ◇. What is the code for 'MODERN'?

In a code, each letter is assigned a number based on its position in the alphabet. Then, the number is multiplied by 2 if the letter is a consonant, or left unchanged if it is a vowel. For example, A(1)→1, B(2)→4. What is the code for 'TRAIN'?

In a coding system, each letter is replaced by the number representing its position in the alphabet, then each number is reversed (written backwards). Finally, all reversed numbers are added together. If the word is 'LOGIC', what is the final sum? Example: A=1→reversed to 1, B=2→reversed to 2, ..., J=10→reversed to 01, K=11→reversed to 11, Z=26→reversed to 62

In a mirror-code system, letters are first converted to their reverse alphabet position (A↔Z, B↔Y, C↔X, etc.), then each resulting letter is shifted forward by 3 positions in the alphabet. What is the code for 'BRAIN'? Note: Reverse alphabet means A=26, B=25, C=24, ..., Z=1 in reverse mapping.

A code uses the following rule: consonants are replaced by the number of the next consonant in the alphabet, and vowels are replaced by the number of the previous vowel in the alphabet. Consonants are numbered 1–21 (B=1, C=2, ..., Z=21) and vowels are numbered 1–5 (A=1, E=2, I=3, O=4, U=5). What is the code for 'SYSTEM'?

In a hybrid code, each letter is assigned a value: A=1, B=2, ..., Z=26. The code for a word is created by: (1) summing the values of all letters, (2) reversing the digits of the sum, (3) subtracting 5 from the reversed sum. If the code for 'TRUST' is 89, what is the code for 'PRIDE'?

A code assigns each letter a symbol based on this rule: vowels (A, E, I, O, U) are represented by their position in the vowel sequence (A=①, E=②, I=③, O=④, U=⑤), and consonants are represented by the symbol of the vowel that comes immediately after them alphabetically. For example, B comes after A, so B=①; D comes after E, so D=②. What is the code for 'KNOWLEDGE'?

In a coding system, each letter is replaced by a two-digit code: the first digit represents the position of the letter in the alphabet (A=1, B=2, ..., Z=26), and the second digit is obtained by reversing the first digit and adding 3 to it. For example, if a letter is at position 7, the first digit is 7, and the second digit is reverse(7) + 3 = 7 + 3 = 10, but since we need a single digit, we take 10 mod 10 = 0, so the code is 70. Using this rule, what is the code for the letter 'M'?