FACTUAL RIDDLES XXXI

1. Why is there no pot of gold at the end of a rainbow?

2. What are the six English words for which there is no rhyme?

3. What do you call a person who wields power and exerts influence, but stays behind the scenes? 

Answers:

1. A rainbow has no end. What we see is only a part of the circumference of a complete circle. 

2. Orange, silver, purple, month, bulb, wasp

3. A gray eminence