Problem: Add spaces: Let'sassumeforthepurposesofthisexercisethatthegradingmechanismisinplacewithinthecontent.

Spaces added: Let's assume for the purposes of this exercise that the grading mechanism is in place within the content.
This text is missing some spaces, please add them: Solvingtimeistypicallyfrom10to30minutes,dependingonyourskillandexperience.
Solving time is typically from 10 to 30 minutes, depending on your skill and experience.
input question: Fix spacing: Within100metersyouwillfindFitnessworldaswellasS-A-T-S.Ifyouarenotamember,bothclubsofferthepossibilityofsigningupforaonedaymembership.

output answer: Within 100 meters you will find Fitnessworld as well as S-A-T-S. If you are not a member, both clubs offer the possibility of signing up for a one day membership.
Problem: fredagden19.September2014
What's a sentence that uses these characters?
-
fredag den 19. September 2014
Add spaces: ThesurfacemountedvariantsintheA30-familyareavailableintwosizes,480mmdiameterand660mmdiameter.

Answer: The surface mounted variants in the A30-family are available in two sizes, 480mm diameter and 660mm diameter.
This text is missing some spaces, please add them: MypartnerdecidedtostudyforaMaster'sdegreeinIcelandandI'dliketogowithhim,alongwithmyson.
My partner decided to study for a Master's degree in Iceland and I'd like to go with him, along with my son.