It's a gas
27 March 2018
Why are farts funny?
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Premium
Turning over a new leaf
27 March 2018
I'm puzzled by beech trees. They are deciduous and their leaves turn bronze in the autumn, but they don't fall off the tree. Instead, they hang on until spring when other plants are putting out their new leaves. How do these trees benefit from this different...
Ol' blue eyes
27 March 2018
I'm told that blue-eyed people find coping with dazzling sun more difficult than brown-eyed people do. Why? Or if it's untrue, what difference, if any, does eye colour make?
Feedback: Where nominative determinism grows like a weed
27 March 2018
What do Garlick, Shears and Greenacre have in common? They all work at the same place. Plus: the unit of distance that is longer in one direction than the other, and more
Bob Walker tribute
27 March 2018
Long-standing contributor Bob Walker died in February. As a tribute we present one of his best Enigma puzzles
The hypnotic face and emerald eyes of the yellow pygmy goby
27 March 2018
These striking, tiny fish are just 2 centimetres long and rarely stray from their adopted homes - but seen up-close, they make quite an impact
