However, Mr Lieberman's involvement in any new government was cast into doubt in December when prosecutors said he would be charged with breach of trust in a case concerning a former ambassador to Belarus.

BBC: Profile: Avigdor Lieberman

For too many teachers, the motto seems to be: When in doubt, walk out.

WSJ: Striking Against Students

And when in doubt about any of the above, just be sure to trust the lunch gods.

FORBES: Taking Your Startup Global: A Crash Course

Tom James' role must be in doubt following his walk-out on the Wales squad when Prydie was chosen ahead of him against New Zealand.

BBC: Wales' Tom Prydie 'can be a 2011 Rugby World Cup star'

"The series is competitive and is being played in a hard way, but I have no doubt that when it is finished there will be a beer shared, " he said.

BBC: Ball-tampering row angers Strauss despite draw

Some will no doubt be chasing a hike in salary, but as is the case elsewhere, when it comes to knowledge workers, more knowledge is also what they are after.

FORBES: Talent Management Is Risk Management in India

Referee Manuel de Sousa waved that penalty appeal away but needed a longer, harder look when Chris Gunter dived in clumsily on Vladimir Bystrov and was fortunate to be given the benefit of the doubt.

BBC: Wales 1-3 Russia

Were he the Fed chairman in 1998, the man who chose to tighten monetary policy when inflation was less than 1% would no doubt be drawing attention to dark clouds on the economic horizon.

ECONOMIST: William Martin

When the Nintendo 3DS went on sale in North America on March 27, there was little doubt the portable gaming console would be a big seller.

FORBES: Nintendo 3DS Breaking Sales Records

And while the Court has often been accused over the years of being too timid in asserting its power, there is little doubt when the justices choose to flex their judicial muscle, the results can be far-reaching.

CNN: The U.S. Supreme Court: How it works