1. A certain word is both singular and plural - like deer or sheep - with no change in spelling. But while all such words do not change in pronunciation, this one does. It has seven letters and starts with the letter C - but not the hard or soft C sound. What's the word?

2. What word is the (only?) plural of a plural ?

Answers:

1.  CHASSIS - Singular - CHAS' EE 

     CHASSIS - Plural - CHAS' EES  

 

2.  OPERAS

     Singular - OPUS

     Plural -     OPERA