"Kaneki had eaten the lower part of Hide's face and that's why his voice box was also eaten. He wasn't able to speak properly but he found an alternative for his voice box and you can see that on his throat."
True to his loyal nature, he sacrifices himself to Kaneki when he finds him down and out in the Tokyo sewers. Hide lets Kaneki eat his face to get back his strength. While it appeared at first that Hide had died in the process, he reappeared later as Scarecrow, an ally of Kaneki and the ghoul hunters.
According to Nightwing issue 43, Richard Grayson is currently in his mid-twenties. So around 25. According to Nightwing issue 43, Richard Grayson is currently in his mid-twenties. So around 25.
When Obito attacked the village, Kakashi should be like 13-14 and Obito 17-18 since 12 years after that, in Part 1 Kakashi was like 26. So Obito should be pretty much 4 years older than Kakashi and can't be 26 in Naruto btw. 31 in Shippuden.