Test your colour IQ
You will have fun with this neat little game. Simply arrange rows of coloured tiles in order, grading from one hue to another – at the end you submit your result for a score between 0 and 99, where zero is perfect. I got 8, and my eyes are old and bent. Be warned, though – staring at the small squares of colour for a time, under an artificial light source, at the end of a long day that finishes a long week, can physically hurt!