Formulate questions about the information mentioned in a given passage.

Q: context: A person is trying to roll an apple, a ball, a mirror, and a bottle.

A: What are the things that the person is trying to roll?
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Q: context: A person is trying to stack plates, lamps, coins, and books.

A: What are the things that the person is trying to stack?
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Q: context: A brick, a microwave, an egg, and a coin moving at identical speeds each collide with a static hockey puck.

A:
What are the things that are moving at identical speeds?
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