Coding and Decoding: Solved 236 Coding and Decoding Questions and answers section with explanation for various online exam preparation, various interviews, Logical Reasoning Category online test. Category Questions section with detailed description, explanation will help you to master the topic.

Coding and Decoding Questions

1. If lead is called stick, stick is called nib, nib is called needle, needle is called rope and rope is called thread, what will be fitted in a pen to write with it ?




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Correct Ans:Needle
Explanation:
Clearly, a 'nib' is fitted in the pen to write with it. But a 'nib' is called 'needle'. So, a 'needle' will be fitted in the pen.


2. If train is called bus, bus is called tractor, tractor is called car, car is called scooter, scooter is called bicycle, bicycle is called moped, which is used to plough a field ? 




SHOW ANSWER
Correct Ans:Car
Explanation:
A 'tractor' is used to plough a field. But a 'tractor' is called 'car'.
So, 'car' will be used to plough the field.


3. If man is called girl, girl is called woman, woman is called boy, boy is called butler and butler is called rogue, who will serve in a restaurant ?




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Correct Ans:Rogue
Explanation:
A 'butler' serves in a restaurant but 'butler' is called 'rogue'. So a 'rouge' will serve in the restaurant.


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4. If sky is called sea, sea is called water, water is called air, air is called cloud and cloud is called river, then what do we drink when thirsty?




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Correct Ans:Air
Explanation:
One drinks 'water' when thirsty and as given, 'water' is called 'air'.


5. If air is called green , green is called blue, blue is called sky, sky is called yellow, yellow is called water and water is called pink, then what is the color of clear sky?




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Correct Ans:Sky
Explanation:
The colour of clear sky is 'blue' and as given, 'blue' is called 'sky'. So, the colour of clear sky is 'sky'.


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6. If the animals which can walk are called swimmers, animals who crawl are called flying, those living in water are called snakes and those which fly in the sky are called hunters, then what will a lizard be called ?    




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Correct Ans:Flying
Explanation:
Clearly, a lizard crawls and the animals that crawl are called 'flying'. So, 'lizard' is called 'flying'.


7. If orange is called butter, butter is called soap, soap is called ink, ink is called honey and honey is called orange, which of the following is used for washing clothes ?  




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Correct Ans:Ink
Explanation:
Clearly, 'soap' is used for washing the clothes. But, 'soap' is called 'ink'. So, 'ink' is used for washing the clothes.


8. If white is called blue, blue is called red, red is called yellow, yellow is called green, green is called black, black is called violet and violet is called orange, what would be the colour of human blood ?  




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Correct Ans:Yellow
Explanation:
The colour of the human blood is 'red' ans as given, 'red' is called 'yellow'. So, the colour of human blood is 'yellow'.


9. If in a certain language, 943 is coded as BED and 12448 is coded as SWEET, how is 492311 coded in that language?  




SHOW ANSWER
Correct Ans:EBWDSS
Explanation:
The numbers are coded as shown:
9 4 3 1 2 8
B E D S W T

i.e., 4 as E,
9 as B,
2 as W,
3 as D and
1 as S.

So, 492311 is coded as EBWDSS.


10. In a certain code, 33946 is coded as PPOAL and 1987 is coded as ROSE. How is 94678 coded in that code? 




SHOW ANSWER
Correct Ans:OALES
Explanation:
The numbers are coded as shown:
3 9 4 6 1 8 7
P O A L R S E

i.e. 9 as O,
4 as A,
6 as L,
7 as E and
8 as S.

So, 94678 is coded as OALES.


11. In a certain code, 15789 is written as XTZAL and 2346 is written as NPSU. How is 23549 written in that code?




SHOW ANSWER
Correct Ans:NPTSL
Explanation:
The numbers are coded as shown:
1 5 7 8 9 2 3 4 6
X T Z A L N P S U

i.e., 2 as N,
3 as P,
5 as T,
4 as S and
9 as L.

So, 23549 is coded as NPTSL.


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12. In a certain code, 15789 is written as AXBTC, 2346 is written as MPDU. How is 23549 written in that code?




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Correct Ans:MPXDC
Explanation:
The numbers are coded as shown:
1 5 7 8 9 2 3 4 6
A X B T C M P D U

i.e., 2 as M,
3 as P,
5 as X,
4 as D and
9 as C.
So, 23549 is coded as MPXDC.


13. The number in question below is to be codified in the following code:
Digit    7    2    1    5    3    9    8    6    4
Letter  W   L    M   S    I     N   D   J    B

Then, what is the code for "64928" ?




SHOW ANSWER
Correct Ans:JBNLD
Explanation:
As given,
6 is coded as J,
4 as B,
9 as N,
2 as L and
8 as D.
So, 64928 is coded as JBNLD.


14. The number in each question below is to be codified in the following code:
Digit     7  2    1    5   3   9   8   6   4
Letter  W   L   M   S   I   N   D  J   B
If the Coded digit is 879341, find which option will satisfy the above condition?




SHOW ANSWER
Correct Ans:DWNIBM
Explanation:
As given, 8 is coded as D,
7 as W,
9 as N,
3 as I,
4 as B and
1 as M.
So, 879341 is coded as DWNIBM.


15. The number in the question below is to be codified in the following code:
Digit     7     2     1     5     3     9     8     6     4
Letter   W    L     M    S     I     N     D    J     B

Find the respective code for "184632"? 




SHOW ANSWER
Correct Ans:MDBJIL
Explanation:
As given,
1 is coded as M,
8 as D,
4 as B,
6 as J,
3 as I and
2 as L.

So, 184632 is coded as MDBJIL.


16. In a certain code, a number 13479 is written as AQFJL and 5268 is written as DMPN. How is 396824 written in that code?  




SHOW ANSWER
Correct Ans:QLPNMF
Explanation:
In the given codes, the numbers are coded as shown :
1 3 4 7 9 5 2 6 8
A Q F J L D M P N

i.e., 3 as Q,
9 as L,
6 as P,
8 as N,
2 as M and
4 as F.

So, 396824 is coded as QLPNMF.


17. In a certain code, 15789 is written as EGKPT and 2346 is written ALUR. How is 23549 written in that code? 




SHOW ANSWER
Correct Ans:ALGUT
Explanation:
In the given codes, the numbers are coded as shown :
1 5 7 8 9 2 3 4 6
E G K P T A L U R

i.e., 2 as A,
3 as L,
5 as G,
4 as U and
9 as T.

So, 23549 is coded as ALGUT.


18. If ENGLAND is written as 1234526 and FRANCE is written as 785291, how is GREECE coded? 




SHOW ANSWER
Correct Ans:381191
Explanation:
The alphabets are coded as shown:
E N G L A D F R C
1 2 3 4 5 6 7 8 9

So, G is coded as 3,
R as 8,
E as 1 and
C as 9.

Thus, GREECE is coded as 381191.


19. If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for the word- ENDEAR? 




SHOW ANSWER
Correct Ans:128174
Explanation:
The alphabets are coded as shown :
E N T R Y S A D
1 2 3 4 5 9 7 8

E is coded as 1,
N as 2,
D as 8,
A as 7 and
R as 4.
So, ENDEAR is coded as 128174


20. If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. ARREST  




SHOW ANSWER
Correct Ans:744193
Explanation:
The alphabets are coded as shown :
E N T R Y S A D
1 2 3 4 5 9 7 8

A is coded as 7,
R as 4,
E as 1,
S as 9 and
T as 3.

So, ARREST is coded as 744193.





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