It has 20 questions and he requires a perfect score.

FORBES: Harvard Professor Re-Identifies Anonymous Volunteers In DNA Study

In the Radio Times, Dr Williams said Jesus was not just a model of perfect behaviour and was "constantly asking awkward questions" in the Bible.

BBC: Archbishop: Rescue young or face further riots

Mathematicians call these "perfect squares" and they arise in many fundamental questions about numbers and their properties.

BBC: The secret of squares revealed

Why am I asking all these people questions instead of building my innovation, making it perfect, and teaching people how to benefit from it?

FORBES: Are You Making Something Usable? Does Anyone Care?

Now customers simply answer some straightforward questions, and the Lands' End algorithm works out their perfect fit for them.

ECONOMIST: Retailers are the top performers online

Thanks to its no-questions-asked policies and lax regulations, Liechtenstein is the perfect EU nation in which to set up shop.

FORBES: Magazine Article

The sometimes shaky technology meant the connection was not perfect, but it was generally sufficient for local journalists to put a range of questions to the ICC's chief prosecutor and the defence counsel.

BBC: Defiant Jean-Pierre Bemba gets his day in court

At NPR, where civilized discourse is one of the network's cherished goals, it's not always possible to strike a perfect balance between the often competing goals of civility and the pursuit of responsive answers to pertinent questions.

NPR: Delicate Art of the Interview: Civility vs. Tenacity

These are questions that can't be answered by Facebook's latest Graph Search, but they're perfect for the stats geeks over at Wolfram Alpha.

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