I hope that you enjoyed Saturday’s Mac Riddles, episode 130. Here are my solutions to them.
1: They come flooding back even better in photos now.
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Memories
They come flooding back (memories apparently do) even better (they’re now improved) in photos now (in the new version of Photos which shipped in macOS 12.1 last week).
2: Give it another heavy kick to start again.
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reboot
Give it another (repeat) heavy kick (boot) to start again (reboot).
3: A piece of firewood and two pairs for coffee are being exploited.
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Log4j
A piece of firewood (a log) and two pairs (= 4) for coffee (Java) are being exploited (the log4j vulnerability, or log4shell, is now being exploited widely).
I look forward to your putting alternative cases.