Answer:
They come in many varieties: Red, Black, Dead, and Caspian to name a few.
Hearing something unexpected or touching a live wire can have this effect.
What can travel around the world while staying in a corner?
What is yours but only used by others?
Lots of them make up a word, And lots of words are in them. It's easy when you think about it. A while ago we stamped and mailed them.
What never gets any wetter no matter how hard it rains?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?