1. Too make seeds (It's not important that you HAVE to do it
2. you get buds that you take off the plant, dry then smoke
3. males are basically useless
4. Dunno
5. I don't think you can harvest males, and I aint absolutely sure on females

But don't take everythign I said 100% correct I am usre it isn't - just from memory and what i have learn't from in the forums