updated 05/13/2011 AT 12:45 PM ET
•originally published 05/13/2011 AT 12:00 PM ET
There’s a new warlock in town.
Before it was confirmed Kutcher, 33, played coy.
“What’s the square root of 6.25?” the That ’70s Show alum and former Punk’d prankster Tweeted Thursday. The answer? 2½, of course.
Kutcher is replacing Charlie Sheen on the CBS sitcom, which fired the troubled actor in March during a now-infamous feud with the show’s producer, Chuck Lorre.