Most markets are now hostage to the fiscal cliff debate as it is now risk on or risk off at any moment and no one really knows how the situation will turn out.

FORBES: Most Survey Participants See Higher Gold Prices Next Week

But there have been numerous official contradictory statements recently over when that trial will begin, and no-one really knows for now, says the BBC's Rana Jawad in Tripoli.

BBC: Saif al-Islam Gaddafi appears in Libya court

Legend has it that John Wilkes Booth was hiding outside in the shadows near the front door of Ford's as the presidential carriage rocked down the uneven dirt street and slowed to a stop, but no one really knows where he was at that precise moment.

NPR: Excerpt: 'Manhunt'

Despite the bank's best efforts, economic growth remains a mystery: no one really knows why some countries sustain it over decades and others do not.

ECONOMIST: A paean of faint praise to the World Development Report

No one really knows, but it shows how fast news can travel digitally and the power brand identity theft could have.

FORBES: It's Ten O'clock: Do You Know Where Your Brand Is?

The truth is that no one really knows yet how well spent the longer-term parts of the immense Recovery and Reinvestment Act will turn out to have been.

ECONOMIST: What did Barack Obama��s stimulus package really achieve?