Science has done so much for us -- from groundbreaking innovations to learning if a turkey will have sex with a stick. (Spoiler alert: yes.) We've come to rely on science for a lot. Well, it turns out those poindexters aren't all they cracked up to be, since they can't even figure stuff out like 20. 19. 18. 17. 16. 15. 14. 13. 12. 11. 10. 9. 8. 7. 6. 5. 4. 3. 2. 1. Source