1,000,001: One to change the bulb and 1,000,000 to rebuild civilization to the point where they need light bulbs again.
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Answer: The back of his head.
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The price of bacon would go up.
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It's not a shrub, it's a lemon tree my dear Watson.
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You go on ahead. I'll hang around for a while.
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Two. One to hold the bulb and the other to rotate the planet.
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