Pick ONE from each question, not both and not neither.
1. telekinesis or X-Ray vision(through walls, through bodies, through anything?
Telekinesis. When the bad guy has a gun trained on you, seeing through it isn't going to get the job done.
2. The strength of 10 bodybuilders combined or the speed of 10 cheetahs combined?
Strength here. I actually thought about this one because getting to work by running would be seriously cool (I despise traffic), but cheetahs can only run that fast for a minute and then they have to rest and do almost nothing. Also, I think it would be funny to see people's reactions when someone my size slaps someone into the next block.
3. The ability to fly or the ability to breathe anywhere(underwater, in space etc.)?
No contest here, flying has it hands down. If I can't fly, what do I need to breath in space for? And underwater? Yeah, then I'll fight crime on land. But, honestly, the reason flying rocks is because THIS is how I'd get to work. Take a nice, leisurely fly into the office. Oh yeah.
4. ability to make yourself invisible or the ability make objects invisible?
I'd be able to make me invisible. Not sure why anyone would pick objects.
5. the ability to be fluent in every language in the world or the ability to hear someone's thoughts?
As long as I could turn it off (watch What Women Want) I'd pick the ability to hear someone's thoughts. Not just anyone though, because some folks would creep me out and I'd have to slap them with the strength of 10 bodybuilders and then turn invisible and fly away.