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We’re looking deep into essences and origins. From coffee to antimatter, can you puzzle out the solutions?

Written by Mike McRae Your pets might like a good scratch, but new research suggests your beloved pot plants might not be so fond of having their fronds fondled.

They’re bright red, a bit crunchy, and they don’t really taste like much. The standard tomatoes you can buy in a supermarket are a bit boring to eat. But if you’ve ever grown tomatoes yourself, you’ll know how sweet and full of flavour they can be. So what’s happened to the humble tomato?