Answer:
What can be as big as an elephant but weighs nothing?
I am a house with two occupants sometimes one rarely three. Break the walls eat the boarders then throw away me.
Some will use me, others not. Some have remembered, others forgot. For profit or gain, I'm used expertly. I can't be picked off the ground or tossed into the sea. What am I?
I have Eighty-eight keys but cannot open a single door.
I am three simple words everyone wants to hear. Three simple words such simple words and yet...life changing...
Written on with words of white, Has the color of the night, Is the teacher's best delight, And a student's daily fright