AceShowbiz - The "Just Married" star, Ashton Kutcher hit headlines this week when his name was linked to the popular sitcom, which is currently without a lead actor following Charlie Sheen's dismissal earlier this year.

Hugh Grant is rumored to have pulled out of talks to replace Sheen and the spotlight has now turned on Ashton Kutcher, who stepped up the gossip by posting a maths problem on his Twitter page which is answered by the number "2.5".

He writes, "What's the square root of 6.25?"

"Two and a Half Men" creator Chuck Lorre is said to have already scripted a storyline to introduce Kutcher to the show, with a source telling the Hollywood Reporter, "It's really funny. People are going to love it...." Another insider adds, "Chuck's really happy."

The Wall Street Journal reports Kutcher's TV deal is worth an estimated $1 million (GBP625,000) per episode. Sheen reportedly made around $2 million (GBP1.25 million) per episode in a deal which also included royalty proceeds.

Kutcher previously appeared to deny the reports linking him to the show, by writing on Twitter, "I'm starting to become convinced that people put my name in articles just to improve their SEO (search engine optimization) or hoping I'll Tweet it."

But that message appeared to have been removed shortly after it was posted.