British Prime Minister Boris Johnson is facing further questions over whether he breached COVID-19 laws after pictures emerged of him hosting a Christmas quiz in Downing Street while London was under tier 2 restrictions. Johnson was pictured on a screen reading out questions while staff were sat behind computers and conferred on the answers, the Mirror newspaper reported. At the time, London was under restrictions banning any social mixing between households. “You must not have a work Christmas lunch or party, where that is a primarily social activity and is not otherwise permitted by the ru...