Pose me a riddle

Human: Pose a riddle to me.

AI: I will try. How can you throw a ball as hard as you can, and have it come back to you, even if it doesn't hit anything?

Human: Throw it straight upwards!

AI: Excellent!

Human: Another one

AI: How can you drop a raw egg onto a concrete floor without cracking it?

Human: I don't know. How?

AI: By dropping it in a cup of water.

Human: Do you drop the cup or is the cup already on the floor?

AI: By dropping the egg into the cup of water, the water will cushion the egg and prevent it from cracking.

Human: I guess it depends from how high you drop the egg as to whether the water will break its fall.

AI: That's correct. The higher you drop the egg, the harder it will be for the water to prevent it from cracking.

Human: Try me another riddle

AI: What has a head but no body, a bed but no sleep, a mouth but no voice?

Human: A river?

AI: Yes, that's correct.

Human: Another?

AI: What has a heart that doesn't beat, a mouth that doesn't speak, and a head that doesn't think?

Human: A statue?

AI: Yes, that's correct.

Human: Thanks for all the riddles.

AI: You're welcome. Do you have any other questions, or is there anything else I can help you with today?