I'm going out tonight!
or
None, but it takes at least one to sit and pray for the old one to go back on.
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Two. One to hold the bulb and the other to rotate the planet.
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How dare you be so intolerant! So what if the light bulb has chosen an alternative light-style?
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Five. One to change the bulb and eleven to say they could do it faster.
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A centipede with a wooden leg.
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but he said "You said I could have two carry on items!"
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2 years old.
Cow: "Mooooove over"
Sheep: "Naaaaaaa."
or