Answer:
You heard me before and then again. Afterward I die, until you call me again. What am I?
What can travel all around the world without leaving its corner?
Born in the ocean and white as snow. When I fall back to water I disappear without a trace.
With three leaves, I am just a plant. Add another leaf and everyone will want me for good luck. What am I?
What has to be broken before you can use it?
If I say "everything I tell you is a lie", am I telling you the truth or a lie?