Two! one to change the light bulb and the other to rotate the universe!
None. Once the bulb goes out, they replace the house.
Because his nutritionist said he had too many minerals in his system!
Wanna go ride bikes
Two, one to change the light-bulb, and one to observe how it symbolizes an incandescent beacon of subjectivity in a netherworld of cosmic nothingness. This is courtesy of Spencer Reid.(CM)
Because it wouldn't commute!
Because the quark had a strange flavour
Because they thought that they were the center of the universe.
Yo, duh.
Interviewer:"If the Earth rotates 30 times faster, what will happen?" engineer:"We will get our salary everyday" :D Think Greedily Act Confidently
Two. One to hold it in place, another to rotate the universe around it.