Given the background description of some cooking related query, summarize the question into a title

Q: I have big chunks of jaggery. I want to turn them into fine powder. What is the best way to turn the chunks of jaggery into their powdered form?

A: What is the best way to turn the chunks of jaggery into fine powder?
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Q: I'm reheating a bunch of leftovers, all stored in aluminum tins. I don't have enough oven rack space to lay it all out flat. Can I stack the tins?(Additionally, is it safe to leave on the paper/aluminum covers - the ones that are cardboard on one side and silver on the other?)

A: If I'm reheating things in tins and I don't have enough oven space, can I stack them on top of each other?
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Q: I'd like to make an exhaustive list of the various animals whose milk humans drink. Here's the ones I can think of:humancowgoatsheepcamelyakbuffalodonkey/assAny others? If so, where?

A:
What mammals' milks are drunk by humans?
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