STUPID QUESTIONS DAY !!!

Abi you don forget ?? today na STUPID QUESTIONS DAY !!! So ask any stupid question.. But i will ask mine first before u do.. 1: Who sang skelewu by Davido?? . 2:how much is that 10 naira satchet water? 3:what is H2O formular of water?? 4:which country hosted d brazil 2014 world cup? 5:Chukwu, abeg, is ur sister a girl? 6:pls, r u people on facebook? Gimme ur usernames & lemme add u. Drop yours and lets see the funniest, dnt stop the fun !!!