News quiz

A 3D erotic film - Sex and Zen 3D: Extreme Ecstasy - has broken box-office records in Hong Kong, partly thanks to an influx of viewers from mainland China. But which country do the porn stars in the leading roles come from?
It's Japan. The adult movie is set at the raunchy court of Ming-dynasty ancient China. It has taken the Hong Kong box office by storm, beating the first-day record set by Avatar.

Kate Middleton has had a coat of arms created for her ahead of her wedding to Prince William. Which of these three images is it?
which uses an acorn to symbolise strength and continuity. It includes chevrons that represent hills and mountains, in a reference to the outdoor activities the Middleton family enjoys. The first coat of arms is that of the Duchess of Cornwall, the second is the arms of Diana, Princess of Wales.

Several hundred Anglicans in England and Wales have been converting to Catholicism and joining a special section of the Roman Catholic Church. What is it known as?
It's Ordinariate, which was set up by Pope Benedict and allows former Anglicans to keep some of their traditions and welcomes married priests.

Finnish nationalist Timo Soini wore the scarf of an English championship league football club when he went to cast his ballot in the election that saw his party increase its share of the vote nearly five-fold. Which club?
It's Millwall, which has its home ground in south-east London. Mr Soini, a "die-hard" Millwall supporter, is rarely seen without his club scarf.
Scientists reported the discovery of the biggest fossilised spider ever found, from the Inner Mongolian region of China. The female, which lived about 165 million years ago, belongs to a collection of spiders well known today. Which?
It's the golden orb weaver. The researchers said that Nephila jurassica, as they have called their specimen, would have had a leg span of some 15cm.
The CIA declassified the US government's six oldest classified documents, dating from 1917 and 1918. Which spy technique did they mostly reveal?
It's secret writing. One document outlines the chemicals and techniques necessary for developing certain types of secret writing ink and a method for opening sealed letters without detection. Another memorandum dated June 14, 1918 - written in French - reveals the formula used for German secret ink.