These coding decoding questions mix the two forms the exam actually sets: letter-shift codes, where a rule moves each letter a fixed distance, and message coding, where whole words map to symbols across several sentences. Every question is engine-minted with its answer validated against its own options, and each walkthrough is the solver's decoding, step by step.
Download the PDF — 15 questions with answers
Free, ungated, no email. This is the coding decoding questions with answers PDF — the same 15 questions as below, with every worked solution at the back, ready to print.
The 15 questions below are ordered the way an exam block is rather than easiest-first: two gentle openers, then a run of medium, and a hard one every sixth question — 2 of the 15 sit in the hard band. The set mixes coding-decoding (letter shift) and message coding-decoding, in the round-robin the paper itself sets rather than one form at a time.
Work each question on paper before you open its solution. The walkthrough is the method itself, step for step, so reading it first turns a practice set into a reading exercise and teaches nothing. If you are stuck on the method rather than on one question, the method guide is a better place to start than the next question: How to crack a coding decoding rule.
Every question below was generated by the same engine that mints the DeducePuzzles daily puzzle round, and machine-checked before it reached this page — a multiple-choice question validates its own answer against its own options at generation, and ships only with a walkthrough attached. The walkthrough is the engine's own.
In a certain code, "SUN" is written as "RTM". The code for a word is "ADC". What was the original word?
Determine the coding pattern from the example and apply it to find the original word.
What is the code for "blue"?
"blue garden paper" is coded as "su ki ro".
"blue garden school" is coded as "ro du ki".
If "ROSE" is written as "WTXJ" in a certain code, how is "DESK" written in that code?
Determine the coding pattern from the example and apply it to the target word.
Which word is coded as "du"?
"silver school market" is coded as "fi la pa".
"market silver blue garden" is coded as "za la mi fi".
"train silver market" is coded as "fi la du".
"garden train silver school" is coded as "pa du mi fi".
In a certain code, "BOOK" is written as "JWWS". The code for a word is "UQTS". What was the original word?
Determine the coding pattern from the example and apply it to find the original word.
What is the code for "school"?
"garden bright train" is coded as "za fi ro".
"river train school garden" is coded as "la za ro ne".
"yellow train red river" is coded as "to la ro mi".
"red yellow train garden" is coded as "mi to ro za".
In a certain code, "FAN" is written as "CXK". The code for a word is "EXQ". What was the original word?
Determine the coding pattern from the example and apply it to find the original word.
Which word is coded as "fi"?
"red bright paper" is coded as "ki fi za".
"red bright green" is coded as "mi ki za".
In a certain code, "GOLD" is written as "AIFX". The code for a word is "LUCH". What was the original word?
Determine the coding pattern from the example and apply it to find the original word.
What is the code for "blue"?
"silver garden train paper" is coded as "su za fi to".
"paper garden blue silver" is coded as "su du fi za".
"silver train garden red" is coded as "to ki su fi".
"garden train blue" is coded as "du su to".
In a certain code, "ROSE" is written as "YVZL". The code for a word is "MPYL". What was the original word?
Determine the coding pattern from the example and apply it to find the original word.
What is the code for "silver"?
"market bright green" is coded as "ki mo su".
"garden train blue" is coded as "za pa du".
"green silver train" is coded as "za ro mo".
"green bright blue" is coded as "su du mo".
In a certain code, "BUS" is written as "XQO". The code for a word is "BWJ". What was the original word?
Determine the coding pattern from the example and apply it to find the original word.
Which word is coded as "la"?
"green yellow river" is coded as "fi ki la".
"green yellow market" is coded as "ki ro fi".
If "DESK" is written as "LMAS" in a certain code, how is "STAR" written in that code?
Determine the coding pattern from the example and apply it to the target word.
Most free practice for this topic is a scanned upload or a blog quiz, and neither can tell you a question has exactly one answer. That is the one thing this set can promise: it is minted, not typed. The engine behind it serves DeducePuzzles's daily puzzle round, so the questions here are the same shape as the ones a live round would give you — and there is an unlimited supply of them, which is why this page can be regenerated rather than padded.
If you want the method rather than more questions, How to crack a coding decoding rule covers the approach, the traps and a worked table. This page and that one deliberately answer different questions: that one is how do I solve these, this one is give me coding decoding questions with the answers.
Write the alphabet positions of the first two or three letters under the original and the code, and read the differences. A constant difference is a plain shift; alternating differences mean the rule depends on position; a reversed sequence means the word was flipped before the shift was applied.
Compare sentences in pairs. Two sentences sharing exactly one word must share exactly one code, and that pairing is fixed. Work every certain pairing first and write it down; only then use elimination on what is left. Guessing early is what makes the last two words unresolvable.
Yes, and it is usually easier there. SSC favours single-word letter shifts and number codes, while IBPS and SBI lean on multi-sentence message coding and conditional coding. The underlying skill is the same: find the rule from the smallest reliable comparison, never from the longest word.
DeducePuzzles is not affiliated with IBPS, SBI, SSC or RBI.
