Answer:
Sally, Lisa, and Bernadette are triplets. But Sally and Lisa share something that Bernandette does not. What is it?
What can you hold in your left hand but not in your right hand?
If you suffer from this, you might wear a wig
What goes through a door but never goes in and never comes out?
A squiggly line tells you when you've done it wrong
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.