no
they don't
it starts at episode 81 but im not really sure
No. Tobi aka Madara Uchiha is from First Hokage's generation. When they met, Kakashi didnt even know Tobi's jutsu.
The first Tobi is kakashi's best friend obito the second Tobi is the founder of the hidden leaf village Madara Uchia
Tobi is Kakashi's old team mate and rival, Obito Uchiha, as was revealed in manga issue 599.
Obito Uchiha aka Tobi.
He hasn't as seen of 17.10.09, and I don't think he ever will.
No he doesn't if he did it hasn't been released in the manga or anime
Yes. Tobi, aka Obito Uchiha, dies while protecting Naruto and Sasuke from Kaguya. She tries to impale the pair with a bone spear attack, Obito and Kakashi move to take the hits. But to protect Kakashi too, Obito uses Kamui to make himself take both attacks. Already battered and worn beyond endurance, Obito's body begins to crumble, and he dies with a smile on his face.
Tobi is obito. obito gave kakashi his left eye on there last mission together, just before he died.
Kakashi, Obito, Rin and Minato Namikaze (the leader) were students in the same team. Obito dies and later on it emerges that Tobi is, in fact, Madara Uchiha. No because obito is not Tobi .madara uchiha is a man from before the hidden leaf he is probably hundreds of years old madara was born before kakashi they can not be the same age because Kakashi is 27 Well as shown now tobi is not madara. However there is no way tobi could be obito cause at the time where the nine tails attacked kakashi was still young and tobi was way older when he fought minato. I dont get why people are not using their brains cause that is a proof that tobi is not obito.
Yes, they fought during the current war arc. With Kakashi's help, Naruto found a way around Tobi's space-time jutsu, smashing his mask and revealing him as Obito Uchiha. Madara made an appearance and currently he and Obito are reviving the Ten-Tails.