Scottish Labour leader Iain Gray was the first to call for a retraction during first minister's question time on 16 June 2011.

BBC: First minister's questions

The exchanges came during the daily half-hour question session in the Lords on 16 January 2012.

BBC: Labour hits out at grammar school plans

The question of what to do with the 16-acre (6.4 hectare) site in lower Manhattan is a controversial one, with opinion differing wildly.

BBC: Sky-high WTC finalists chosen

The deal signed by Mr Cameron and Mr Salmond will also see Holyrood legislate for the date of the referendum, whether to reduce the voting age to 16, the wording of the question, campaign finance rules and the conduct of the referendum.

BBC: Scotland politics

They found that the Yes vote varied by 16 percentage points depending on how the question was asked.

ECONOMIST: Referendums

On 16 June 2010, in the first Scottish question time of the new Parliament, Mr Moore stressed Lib Dem policy was still to "eventually" see the role of Scottish Secretary abolished.

BBC: Scottish Secretary defends role

The document in question is the National Intelligence Estimate, a joint effort by all 16 intelligence-gathering agencies in the U.S. government.

NPR: U.S. Iraq Policy: Going Down on One NIE?

"One thing I've demonstrated often in 16 years is you can do this job without asking a single question, " he recalled in a speech five years ago.

CNN: Clarence Thomas breaks years of silence on bench

If we can use technology so well to occupy my 16 year-old at the video games, there is no question that we should have the capacity to do that to help kids learn in a way that keeps us competitive.

WHITEHOUSE: Press Briefing

In part, I found answers to the question while serving in the South Carolina Air National Guard and partnering with one of the greatest F-16 Fighter Pilots I know.

WHITEHOUSE: Engage and Connect