Answer:
Used to keep prisoners silent and to make temporary repairs on cars.
Come up and we go, Go down and we stay.
In your fire you hear me scream! Creaking and whining yet I am dead before you lay me in your hearth.
It can be used onstage or to express admiration. What is it?
You do this into someone's ear when you want to be discreet.
What language does a billboard speak?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?