179.  What well known saying is this:  "lla ta devol evah ot reven naht tsol dna devol evah ot retteb si ti."

180.   What word of five letters has only one left when two letters are removed?

181.  What instrument can make any sound and be heard, but is never touched or seen?

ANSWERS:

179.  "It is better to have loved and lost than never to have loved at all."  It's backwards.

180.  Any five letter word that has "one" in it.  Stone, alone, money, loner.

181.  Your voice.