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11 is a prime star. 12 is a rectangle time-teller. 13 is unlucky, with his slippery legs and when someone says his name he splits into 13 ones. 14 is double seven. 15 has three pentagon eyes, instead of stareyes, with three hands. 16 represents WindowsEffects2019 HD. 17 is a haiku. 18, well, I know this sounds weird, but hates golf. 19 is 17's cousin. 20 looks like two because he is 2 lots of 10.