You can't make them go faster.
yes
You could make a pond and go fishing.
I am not sure about sims2 castaway but to make your hair grow in the sims2 open for business you go to a store and buy hair cream.Or go to the salon at let them but cream in your hair.
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!
no, impossible and impossible only on computer
Well there is no cheat all you have to do is make your Sims do their homework. If you have Sims 2 Seasons you have your sim drink apple juice before they do their homework. It will help them do it faster.
It's similar to how you age sims. Have the boolprop TestingCheatsEnabled true cheat on. You have to have a sim selected, then simply shift click on a puppy and choose the "SET TO BIRTHDAY" option. Hope it works, did for me!
Sims 2 double deluxe? yes sims 2 children grow up.
if you want them to grow up together you have to play both house holds, hope this helps :)
The original games (of 2 and 3) can do this, you might just need to wait a bit longer for it to happen.
they make the person your talking to falll in love with them and like them faster