Answer:
What instrument can make any sound and be heard but not touched or seen?
What is the middle of water but is not an island?
What goes up and down the stairs without moving?
What heavy seven letter word can you take two away from and be left with eight?
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 gets broken if it’s not kept?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?