Former Pakistani President Pervez Musharraf is becoming one of the biggest stars in Facebook. His personal Facebook page has more than 127,000 fans and he regularly answers questions and posts status updates.

Pervez Musharraf

Musharraf swept to power in 1999 in a bloodless coup, removing Prime Minister Nawaz Sharif and appointing himself president in 2001, while remaining the head of the military.

Considered an ally by the United States in the fight against Islamic extremists in the region, he was criticized for impeding democratic elections in 2008 – including delaying the elections, suspending the country's constitution, restricting the media and having political protesters arrested.

Ultimately, his political party – Muslim League-Q – finished third in the voting and he stepped down only after the ruling coalition announced it would seek to impeach him.

Musharraf, speaking on CNN's "Fareed Zakaria GPS" last May, said he wishes the current government well and that he "would be the happiest person" if the nation deals well with threats such as the growing political and martial strength of the Taliban.

We want to know what you think. What would you like to ask the former Pakistani leader?

I'd never been through an MRI scan before, and this one was anything but routine.

Our assignment was to find a way to illustrate a complex story about patients diagnosed as "vegetative" showing signs of awareness when in a functional MRI scanner.

The story emerged from a study published in the New England Journal of Medicine.

Producer Jonathan Wald immediately set to work ringing hospitals, neurosurgeons, and research centers.

Eventually, we got through to one of the authors of the study.

Dr. Adrian Owen offered to question me while inside the fMRI scanner at the MRC Cognition and Brain Sciences unit at Cambridge– much like what the patients in his study had gone through.

Twenty-three of those patients were believed to be in a so-called "vegetative state;" unresponsive and unaware of their surroundings.

But when asked to imagine playing tennis (meant to activate parts of the brain associated with movement), and walking through the rooms of their homes (meant to activate regions associate with spatial navigation), four of the patients' brains showed a similar response to those of healthy control subjects.

The researchers then went on to ask one of them a series of yes and no questions, imagining tennis for yes, and walking through the house for no.

Incredibly, using only his thoughts, he was able to answer.

We set out to illustrate how the tests were done. So cameraman Andrew Bobbin and I took a pre-dawn train from London to the MRC in Cambridge, in order to use the fMRI scanner early in the morning, the only time it was free.

Dr. Owen had me remove all the metal from my pockets, take off my shoes and jacket, and lie down on the machine. Next, a sort of mirrored visor was placed over my eyes, in which I could see a blue digital rectangle, and I was lowered into the machine.

MRI scan shows different responses in the brain after the patient is asked different questions.

For the first ten minutes or so, I was asked to alternate between imagining standing in one spot swinging a tennis racket, and resting under the sun, doing nothing. Next, I was told to imagine walking through the rooms of my house. Only then did we get to the questions.

Dr. Owen asked, "Do you have any brothers or sisters"? He then spoke into the microphone, saying either "answer" - to which I would imagine tennis for yes and navigating my house for no - or "rest".

Though I generated clear enough signals for Dr. Owen to decipher my "yes" answer, it surprised me how difficult it was to think in such a disciplined way for five minutes or so.

For example, I'd be thinking of walking through my childhood home, then suddenly veer off into the neighbors yard and start remembering their old hound dog, or walk into my old bedroom and wonder if that closet door is still broken.

And then, I thought, what a different experience this would be if you were one of the patients in the study. When I was asked every so often if I understood and if I were doing ok, I could respond with no problem.

Not so for the study's patients.

What's more, for those patients diagnosed as "vegetative" but who now appear to be aware, this must have seemed one of the most important tests in their lives.

It was a chance to show not just their loved ones, but the world that they were still inside there - conscious!

Dr. Owen went on to ask a second question, and then we were out of time.

There are many reasons to be cautious about the results of this study, I've been told by doctors and scientists. Further tests need to be done, only those suffering from traumatic injuries responded like the healthy subjects, and only a small percentage of the "vegetative" patients showed signs of cognition.

But none of that has stopped me from wondering at the difference this could potentially make in the lives of some patients, and the possibilities for the future.

We'd like to know what you think - please leave comments or questions below.

Donald Trump is one of the world's most well known real-estate tycoons and television personalities.

Donald Trump.

His confident and sometimes brash attitude has made him both a friend or foe to many in the business and celebrity world.

During the late 1960s, Trump took over his father's real estate development company in New York City and he soon began investing heavily in large scale building projects in Manhattan.

His name soon became synonymous with luxury buildings including Trump Tower, Trump Plaza and Trump World Tower.

He also expanded the Trump Organization to include a number of casinos, golf courses and marinas.

In 2003, Trump moved from the construction site to the television set.

He was the executive producer and host of the hit television show, "The Apprentice", which pitted budding businessmen and women against each other in the hopes of getting a job with Trump.

The show went on to be a worldwide hit and in 2004, Trump trademarked his catch phrase "You're Fired!".

In the same year Trump's pay for the show skyrocketed to a reported $3 million per episode - making him one of the highest earning television stars in the world .

Trump, whose Miss Universe pageant is frequently criticized for being a sexist throwback, stirred further controversy in 2006 with an on-air verbal tirade against television personality Rosie O'Donnell.

The real-estate magnate is currently building what he is calling the "world's greatest golf course" near Aberdeen, Scotland after overcoming resistance from local environmentalists.

Here's your chance to ask Donald Trump your questions.

What was it like being on "The Apprentice"? Maybe you want to know how his wife Melania is? Are there any new building projects on the horizon? What does he think of President Obama?

There has been a long debate as to whether sex education is something that should be taught to young children in school. But what if things were taken one step further and soft-core pornography was included in the mix?

How far should sex education go?

It's something that adult film director, Justin Ribeiro dos Santos, thinks will help properly educate students when it comes to sex.

The 32-year-old Englishman believes that in an over-sexualized world, young people aren't getting a correct image of what sex is actually like as well as the potential dangers of addiction when it comes to pornography.

“Kids know a lot about the dangers of drug abuse, but we should say to kids, porn is a vice and, like drugs or alcohol or overeating, it can get out of control," Justin told the Times of London newspaper.

"Parents need to join forces with schools because all this needs to be talked about openly."

We'd like to you know what you think.

Do you think pornography should be included in the school curriculum? Have young people's visions of sex been skewed by the internet? Is education the answer?

Please leave your questions below.

English singer-songwriter, Corinne Bailey Rae, is a relative newcomer to the music world, but in only a few years she has already made a big impact.

Corinne Bailey Rae has just released a new album.

Her debut album, "Corinne Bailey Rae" was released in February 2006 to worldwide acclaim and she came away with a number of important music awards.

Rae is currently out with a new album called "The Sea" which she says helped her through the tragedy of losing her husband in 2008.

The singer was married to fellow musician, Jason Rae from 2001 until he died of an accidental drug overdose. Even though it was a difficult time for Rae, she is quoted as saying the process of recording her new album helped her through the tragedy.

Rae is also involved with an international gathering of young minds called "One Young World" which is aimed at helping solve the world's problems.

The organizers of "One Young World" have invited Rae to perform two songs for the speakers and delegates as the finale to the opening ceremony.

Here's your chance to ask Corinne Bailey Rae your questions.

Please post your questions below.

Even though we may be in the middle of one of the toughest economic climates in recent memory, it hasn't stopped companies from spending nearly $3 million for a 30 second ad during this weekend's Super Bowl.

There have been some very memorable advertising campaigns in Super Bowl history - from the 1984 Apple Computer ad directed by Ridley Scott to Budweiser's infamous "Waz up" campaign.

Love them or hate them, Super Bowl ads are one of the most talked about pop culture phenomenon's each year.

We want you to recall some of your most memorable ads and also if you think it's worth the price.

Please leave your comments below.

Barry Manilow has been a music icon for nearly four decades and still hasn't missed a beat.

Barry Manilow has entertained audiences for decades.

The well known singer-songwriter is most famous for his wide range of songs - from "Mandy" to "Copacabana" - and his very unique stage presence.

Born in America, Manilow has worked with artists including Bette Midler, Dionne Warwick and Rosemary Clooney.

In 1978, Manilow had five of his albums simultaneously on the best-selling charts and he has a number of awards including two Grammy's, three American Music Awards and two Emmys.

Manilow has just released his 16th record titled "Greatest Love Songs of All Time" which is available now.

Here's your chance to ask Barry Manilow your questions.

Do you want to know how he's survived on the stage for so long? Who his favorite musicians of today are?

Please post your questions below.

A mystery bidder has paid $104.3 million for a piece of art in London, making it the most expensive artwork ever sold at auction.

Is this sculpture worth $104 million?.

Alberto Giacometti's "L'homme qui marche 1 (Walking Man 1)" was sold in less than eight minutes to an anonymous telephone bidder for a staggering $104.3 million during an auction at Sotheby's.

The previous record for a piece of art sold at auction was $104.1 for Pablo Picasso's "Garcon a la Pipe".

"We knew that there was going to be a lot of demand for this great piece of art, but we were really amazed," Melanie Clore, deputy chairman of Sotheby's told CNN.

The life-size bronze sculpture of a man was made in 1961 and was originally cast in an edition of six by the Swiss artist.

We want to know what you think.

Do you think this piece of art is worth $105 million? Could the money have been better spent?

Please leave your thoughts and comments below.

You wouldn't think that rock and roll music would be a good fit with the Islamic faith, but 30 million records say otherwise.

Salman Ahmad is the lead singer and founding member of Junoon.

Salman Ahmad is the lead singer and founding member of one of South Asia's biggest rock bands - "Junoon" - and can count big name celebrities like Al Gore and Bono as fans.

Ahmad is renowned for being the first rock and roll musician from the region that has torn down barriers between the west and the Muslim world.

The rise of "Junoon" wasn't an easy task - the creation of the group came at a time when angry mullahs wanted music to be banned from the Islamic Republic of Pakistan.

Today though, the band has become the U2 of Asia and the group has already sold a record number of albums across the region.

Ahmad has been a UNAIDS Goodwill ambassador since 2005 and and has been helping to raise awareness to reverse the spread of AIDS through his music.

His new book is called "Rock & Roll Jihad: A Muslim Rock Star's Revolution" and he has just performed at the United Nations.

Here's your chance to ask this inspirational musician your questions.

Do you think that rock and roll music can mix with the Muslim culture? Does it cause too much tension or can it help bridge a gap between the west and Islam? Maybe you want to know who his idols were growing up?

Please post your questions below.

(CNN) The medical journal, The Lancet, on Tuesday retracted a controversial 1998 paper that linked the measles, mumps and rubella (MMR) vaccine to autism.

Dr. Andrew Wakefield was the lead author of the study.

The study subsequently had been discredited, and last week, the lead author, Dr. Andrew Wakefield, was found to have acted unethically in conducting the research.

The General Medical Council, which oversees doctors in Britain, said that "there was a biased selection of patients in The Lancet paper" and that his "conduct in this regard was dishonest and irresponsible."

The panel found that Wakefield subjected some children in the study to various invasive medical procedures such as colonoscopies and MRI scans.

He also paid children at his son's birthday party to have blood drawn for research purposes, an act that "showed a callous disregard" for the "distress and pain" of the children, the panel said.

The issue has become a huge debate within the medical community and among parents with young children.

Many parents avoided giving their children vaccines because of this study over the past decade.

We want to know what you think.

Has autism touched your life? Did you change the way you vaccinated your children because of this study? What are your thoughts on this emotional issue?

Please leave your comments below.