QUESTION: Fix punctuation: He insists on pulling me back to that evil red stuff but then we have to cross a patch of mud and the path is right beside us just waiting for me to run as fast as I can on it which is great but the old man gets sulky again
ANS: He insists on pulling me back to that evil red stuff, but then we have to cross a patch of mud, and the path is right beside us just waiting for me to run as fast as I can on it, which is great - but the old man gets sulky again.

QUESTION: Fix punctuation: HFS for Windows delivers maximum convenience with no more worries about crossplatform computing
ANS: HFS+ for Windows delivers maximum convenience with no more worries about cross-platform computing

QUESTION: Fix punctuation: Surfing courses are taught by experienced ISA International Surf Association surf instructors
ANS: Surfing courses are taught by experienced ISA (International Surf Association) surf instructors.

QUESTION: Fix punctuation: Even though men and women have an equal amount of hair follicles the distribution of the hairs growing in them is somewhat different
ANS:
Even though men and women have an equal amount of hair follicles, the distribution of the hairs growing in them is somewhat different.