Can you remember what you did when you were five-and-a-half-years-old?
I can't, but I guess I spent a lot of time playing Barbie dolls and kicking up a fuss whenever it was time to go to kindergarten.
Duoduo, a boy from Nanjing, will put many of us to shame with the list of impressive feats he has accomplished at such a young age.
He has scaled Mount Fuji in Japan, sailed solo in a tiny vessel during the Qingdao International Sailing Week and most recently, flew an aircraft over the Beijing Wild Animal Park.
Duoduo, whose real name is He Yide, came into the limelight last year when a video of him running in a snow-covered New York street went viral on the Internet.
He was clad only in a pair of yellow underpants and sneakers.
His father He Shenglie, who recorded the video, ordered him to run and do push-ups despite his pitiful pleas for a hug.
Duoduo has since been labelled "the boy who ran naked", while the Senior He earned the moniker Eagle Dad (or "Ying Ba" in Chinese) for his parenting style.
He said that he took inspiration from eagles, which train their eaglets to fly by dropping them off a cliff.