Reverse the word, then alternate two shifts

The same question, asked 4 times: 21 Jul 2023 S2*, 25 Jul 2023 S3*, 10 Sep 2024 S1*, 19 Sep 2024 S2. Every wording below, oldest first.

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Question 1
21 Jul 2023 S2
24 $In a certain code language, 'CHORUS' is coded as UVTPJD and 'ANTHEM' is coded as OFJUPB. How will 'VOLUME' be coded in the same language?$
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Question 2
25 Jul 2023 S3
1 $In a certain code language, 'MOBILE' is coded as BJFZLK and 'TABLET' is coded as QCIZXR. How will 'KINDLE' be coded in the same language?$
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Question 3
10 Sep 2024 S1
4 $In a certain code language, 'BELL' is written as 'MKFA' and 'BOND' is written as 'EMPA'. How will 'BLEW' be written in that language?$
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Question 4
19 Sep 2024 S2
12 $In a certain code language, 'MAIN' is written as 'OHBL' and 'MAIL' is written as 'MHBL'. How will 'MANY’ be written in that language?$
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Question 1