I hope that you enjoyed Saturday’s Mac Riddles, episode 139. Here are my solutions to them.
1: Reverse to support a complete copy in case.
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backup
Reverse (backup) to support (back up) a complete copy in case (what a backup is).
2: Lunch box worked with the data in your address book until its death eight years ago.
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Bento
Lunch box (Japanese bento) worked with the data in your address book (Bento did) until its death eight years ago (FileMaker discontinued it on 30 September 2013).
3: The bosun’s mate who stabilises pH in temporary storage.
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buffer
The bosun’s mate (known as the buffer) who stabilises pH (what buffers do in chemistry) in temporary storage (what a buffer does in computing).
The common factor
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They all start with the letter B.
I look forward to your putting alternative cases.