Vowels and consonants shifted by different amounts (e.g. vowels +1, consonants +2)

The same question, asked 2 times: 12 Sep 2024 S2*, 13 Sep 2024 S1. Every wording below, oldest first.

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Question 1
12 Sep 2024 S2
23 $In a certain code language, ‘BOOK’ is written as ‘ZNNI’ and ‘SHOP’ is written as ‘QFNN’. How will ‘NOTES’ be written in that language?$
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Question 2
13 Sep 2024 S1
10 $In a certain code language, ‘HUSBAND’ is written as ‘JVUDBPF’ and ‘SISTER’ is written as ‘UJUVFT’. How will ‘BROTHER’ be written in that language?$
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