1 - Spatial awareness (choosing which of the shown 'nets' would fold up to make the shown cube), dyslexia tests, literacy and numeracy, colour blindness, tests to spot repeating letters in a sequence, and letter combinations. Useful in the real world, as it's tempting to get the callsigns DLH123 and DHL123 confused when you're under pressure! The first, of course, being Lufthansa and the second DHL..