There is a restaurant on the 1st level called 58 Tour Eiffel. I would imagine there would be a bathroom on that level. Whether or not it's open to the public in the viewing section is another matter. (I bet if you really had to go, and asked very nice; they might let you go. Most French people are very kind). On the top level when I was there in May 2009, I couldn't find a bathroom. I didn't need to go. I was simply curious. They did serve champagne though, for a heart stopping 10 Euros a glass...
yes there is a small apartment on top of the tower. it can be seen when touring the tower.
No, it has a restaurant but it doesn't have that much room for rooms.
no
Tokyo Tower. Communication tower built in the '60s of similar look to the Eiffel Tower.
no
The famous tower in Paris is called the Eiffel Tower, or in French, la Tour Eiffel.
The tower boosted the iron industry
no the Eiffel Tower is on the ground
no
yes
yes gustave Eiffel had his apartment on the top of the Eiffel tower.
The Eiffel Tower, opened in 1889, was built by engineer Gustave Eiffel.
there was never any one who has attempted to jump of of the Eiffel tower if they did the would be complete widow's.