Answer this question: where in the world are smallpox common?
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Answer: The earliest physical evidence of it is probably the pustular rash on the mummified body of Pharaoh Ramses V of Egypt.

Answer this question: what does a timing belt do?
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Answer: Timing belt (camshaft) , a toothed belt used to drive the camshaft(s) within an internal combustion engine

Answer this question: Who invented egg rolls?
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Answer:
2__Egg_roll __ Varieties of egg rolls are found in mainland China , many Chinese-speaking regions of Asia, and Chinese immigrant communities around the world.