Математичний аналіз і диференціальні рівняння вивчаю САМ

Sorry for off-topic, I'm thinking about creating an informative site for young students. Will probably start with publishing interesting facts just like"Every time you lick a stamp, you're consuming 1/10 of a calorie."Please let me know if you know where I can find some related facts like here

www.caseytutungi.com/your-own-roadmap-in...uperior-book-record/
www.kulracunovodja.com/27-4-200-000if-jo...duced-your-money-by/
nasmc.org/intended-for-teacher-lowes-because-possesses/
www.volumeauto.net/2018/01/19/thesis-cra...thin-nova-scotia-30/
www.daisylondon.cn/include-a-web-page-he...i-operating-brain-i/