The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts

What is the origin of the pub name the Moon Under Water? George Orwell adopted it to describe his “ideal of what a pub should be”, but where did he get it from? Mike Jones, by email

Post your answers (and new questions) below or send them to nq@theguardian.com. A selection will be published next Sunday.