Two. One to hold the bulb and the other to rotate the planet.
or
Because it would fall over if it lifted the other one.
or
So that real estate agents would have someone to look down on.
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A natural major.
or
Seven. One to change it and the other six to sing about how good the old one was.
or
How dare you be so intolerant! So what if the light bulb has chosen an alternative light-style?
or
French Flies.
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None. music teachers can't afford lightbulbs.
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It's not a bulb, it's a globe.
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Because pepper makes them sneeze
or