You could read a book about the skill, or just do the skill (like playing Chess for logic & watching tv for fishing.
Photography, Nectar-making and Martial Arts. :)
A genius sim learns faster than others. Beyond making your sim a genius you would have to look for a mod. Check modthesims.info for skill mods, I know they have several.
No, there is no cheat code for skills on The Sims 3.
Unfortunately there is no Sims 3 cheat that maximises all skills...yet.
Speed up the game
I don't really know the answer to that. My Sims is a heart breaker and I wanted her to have lots of kids but it takes to long. I guess the answer has to be... That in Sims 3 you can't make your Sim have a baby faster. You can in Sims 2 though!
They do not learn faster. That is a dis-proven myth.
nope just woohooo
You can't make them go faster.
Build up the sims body and creativity skills
Text race can help you learn how to text faster.
you would learn building skills