No you can adopt them if a friend posts it on their feed for adoption.
yes
You get gifts sent to you on farmvile.
They are currently available in the mystery gifts. (The free boxes sent to you by friends, not the ones that cost Farm Cash in the market.)
no you can not all the thing you can send is on free gifts
Go to the Free Gifts page on farmville. Select wooden plank if it is available at the present time and select next. Click on the friend you want to send it to and click send.
The only way to obtain an Elephant through FarmVille, is by gift. You have to have neighbors, or friends who play FarmVille. If you do, they have the ability to gift you them under the 'Free Gifts' tab on the top left of the game. Elephants, among other animals, are not available for purchase. Only cows, sheep, and chickens.
You receive free gifts from your neighbors in FarmVille on Facebook whenever they send them to you. You can make a wish, so that they know which gifts you would like to receive, or you can send them the gifts that you would like to receive and request that they send back the same. You can gift about 30 neighbors every 4 hours.
You cannot trade animals on Farmville, but you can give them as gifts. An animal you give as a gift is free and is not one of the animals you own.
You can only send things that appear on the free gifts page
If you are talking about the gifts that your friends send you, there in your request box. you can accept or decline gifts for all of your applications.
Go to the free gifts section on the top left above the screen with a picture of a gift select your gift, then select who you want to send it to.
Only if you have unlocked that item to send on the "Free Gifts" menu. But you cannot send items that are on your farm.