help with a riddle

[DOGS THAT BARK]

Good job Mama--Which ever you one you ask you will get wrong answer. Had to think about it a minute 1st time I heard answer.

 

[jpblack34]

Taoist, whats the answer to yours? I can't figure that one out?

 

[BahamaMama]

Startling
starting
staring
string
sting
sing
sin
in
I

 

[jpblack34]

thanks mama