1. Certified yoga instructor at 12
She is a yoga instructor who has the challenging job of teaching fidgety preschoolers the ancient practice.
But once her charges get going, she says: "They really start to focus and listen."
Jaysea Devoe knows a thing or two about childhood and focus, for she is only 12 years old and just recently became a certified yoga instructor after completing 200 hours of teacher training.
She is believed to be the youngest certified female yoga instructor in the US.
In addition to her pint-size students, aged four to six, Jaysea teaches teenagers and fellow tweens in her California beach town of Encinitas.
But she is not alone in her entrepreneurial zeal, Reuters reported. Her twin brother is a sponsored competitive surfer and works at a surfboard fin manufacturing company.
Her 15-year-old brother is a "professional water man," spear fisherman, rod and reel angler, and surfer, who also teaches and has sponsors.
2. Boy, 5, uncovers Microsoft glitch
Microsoft recently received a tip about a security problem uncovered by an unlikely source - a five-year-old boy.
Kristoffer Von Hassel of California, US, had found a simple but clever way to hack into his father's Xbox Live account, local television station ABC10 reported.
The ingenious tot was getting around his father's account password by first typing in a wrong password, then typing only space keys and hitting enter when shown a password verification screen, allowing him into the account.
When the pair brought the glitch to Microsoft's attention, the company showed its appreciation by giving Kristoffer four games, US$50 (S$60) and a year-long subscription to Xbox Live, US news website Huffington Post reported.
But Kristoffer missed out on the US$10,000 bounty Microsoft pays hackers for finding security flaws in Windows software.