Christmas carol quiz Here are the opening lines of 20 Christmas carols, listed alphabetically, but with every letter replaced by the letter "x". How many can you identify? 1) Xxxxxx xxxx xxx xxxxxx xx xxxxx 2) Xx xxxx xxxxxxxx, xxx xx xxx 3) Xxxx xx x xxxxxx, xx xxxx xxx Xxx xxx 4) Xxxx xxx xxxxx xxxx xxxxxx xx xxxxx 5) Xxxx xxxx xxxxxxx xx xxxx 6) Xxx xxxx xx xxxxx, xxxxxxxxx 7) Xxxx Xxxx Xxxxxxxxx xxxxxx xxx 8) Xxxx xxx xxxxxx xxxxxx xxxx 9) X xxx xxxxx xxxxx xxxx xxxxxxx xx 10) Xx xxxx xxxx xxx xxxxxxxx xxxxx 11) X xxxx xxx xx xxxxxxxx 12) X xxxx, X xxxx Xxxxxxxx 13) X xxxxxx xxxx xx Xxxxxxxxx 14) Xxxx xx xxxxx Xxxxx'x xxxx 15) Xxx xxxx xxx xxxxxx'x xxxx 16) Xxxxxx xxxxx, xxxx xxxxx 17) Xxx xxxxx Xxxxxx xxx xxxxxx xxx xxx 18) Xxx xxxxx xxx xxx xxx 19) Xx xxxxx xxxxx xx Xxxxxx xxx 20) Xxxxx xxxxxxxxx xxxxxxx xxxxx xxxxxx xx xxxxx [Answers in the comments box]