Answer:
The Titanic is still here. What am I?
I begin your sentences.
I am a busy worker who is a water mammal.
I have thirteen hearts but no body or soul. What am I?
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say. What am I?
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?