QUESTIONS

Q : Has anyone reappeared after been officially declared ‘presumed dead’ due to being missing for more than seven years? Gerald Rudge, Monte Carlo, Monaco. Q: The joke is that Nasa means ‘No Aliens Seen Anywhere’. What other amusing versions of acronyms are there? Dee Mehta, Leicester. Q: What is the origin of the term ‘the thin blue line’? Brian Parks, Maidenhead, Berks.