The forum search function should have shown you the post with all of those answers in the original VF1 forum for Windows and Mac (the puzzles are the same in all versions), but I've copied the post to the iOS forum, as well, so it's easier for mobile players to find. I've made it a sticky post, so just look near the top of this forum (Virtual Families for iOS) and you'll see a post titled [SPOILERS] Shed, fires, leaks, walls, floors, etc.

Since the forums are not very active at the moment, using the search function will often give you answers far faster than waiting for other players to see your post and answer it.