Answer:
Sally, Lisa, and Bernadette are triplets. But Sally and Lisa share something that Bernandette does not. What is it?
It comes from crystal and melts to a treat. Add it to your tea to make it sweet. What is it?
Cycle Cycle Cycle.
It can be used onstage or to express admiration. What is it?
What can you never get rid of when you lose it?
I am a room that has a roof but no walls. What am I?