Letter cluster analogy: letters taken in pairs, each pair moved by its own step

This type of question, asked 4 times: 17 Jul 2023 S1, 19 Sep 2024 S1, 19 Sep 2024 S3, 13 Sep 2025 S2. All 4 questions below, oldest first.

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Question 1
17 Jul 2023 S1
1 $Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster. CIVILIAN : AGREFCSF :: DOCTRINE : BMYPLCFW :: EQUATION : ?$
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Question 2
19 Sep 2024 S1
11 $‘RUCK’ is related to ‘TWAI’ in a certain way based on the English alphabetical order. In the same way, ‘DPHM’ is related to ‘FRFK’. To which of the following is ‘KNOM’ related, following the same logic?$
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Question 3
19 Sep 2024 S3
7 $‘MPQO’ is related to ‘KNSQ’ in a certain way based on the English alphabetical order. In the same way, ‘DGHF’ is related to ‘BEJH’. To which of the following is ‘EINW’ related, following the same logic?$
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Question 4
13 Sep 2025 S2
16 $In each of the following questions, the second group of letters is formed from the first using a specific alphabetical transformation. Apply the same pattern to the third group and find the correct option that completes the analogy. QDXM : SFYN :: UIOZ : ?$
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Question 1