Hey peeps. I have a problem with bar chords. I know how to do a bar chord and all that , its just when i play with bar chords, some of the strings sound muted. I dont think this is because of the action of my guitar.
This is especially annoying when im trying to pick single strings with a bar shape.
any suggestions would be appreciated.

Your fingers probably aren't strong enough, just keep on practicing the bar chords and they'll start working for you. That being said make sure that the way your pressing the frets is normal.
How many guitar players does it take to change a light bulb?

Twelve. One to change the bulb and eleven to say they could do it better.
Try playing on the bony side of your finger as opposed to the soft, spongy side. See if that helps.