"How Smart Are You. Test Your I.Q." looks fun; the users answers 10 questions but before the results are revealed, the user is asked to enter their cell phone number.
It may seem odd, but with so much texting going on these days, some go for it.
It turns out they have just signed up to pay $9.99 a month.
There have been complaints about similar tests all billed through people's cell phone numbers; this one is being sent out through hacked Twitter accounts, so if a friend encourages you to take an I.Q. test, be aware, it may be a hacker.
