Answer:
It's in your hand though you cannot feel it. Only you and time can reveal it.
What is the middle of water but is not an island?
What is always coming every day, but never arrives until the next?
What do roses, chocolates, laces, love knots, the color red and hearts have in common?
What has many keys but cannot open a single lock or door?
I am a room that has a roof but no walls. What am I?