How were Tony and Peter able to breathe on Titan in the Avengers: Infinity War?

After they Defeated Ebony Maw Tony checked on the ship and advised Dr. Strange that the ship had auto course corrected and was heading back to Titan. So when he did that he obviously also noticed that Titan had a comparable atmosphere to Earth also if he searched the ship and found no breathing apparatus then it can also be assumed that since Ebony Maw was breathing fine on Earth then he would probably need something to be able to breathe on Titan and again they found nothing.

How does Wolverine have adamantium claws in the upcoming movie X-Men: Apocalypse?

It's possible that despite Mystique's efforts, Wolverine was still captured by the Weapon X program and was given the adamantium skeleton.It's also possible that it's not Wolverine/Logan/James Howlett that we saw, but someone else. Someone like X-23, but with three claws instead of two. I mean that Stryker found someone else and bonded adamantium to their skeleton.

What are good movies similar to Never Back Down?

Never Back Down was:a) Low budget MMA movieb) Well choreographed action movie with dramac) Tale of good vs evil with a little romance thrown inMovies with similar themes are:The sequels to NBD, Never Back Down 2: The Beatdown (2011), and NBD 3: