First of all, make sure you have a hibernation cave. Then, select the dragon you want to hibernate. Click 'move'. A green arrow should be pointing to the hibernation cave just like when you move dragons to different habitats. Click on the hibernation cave. Your dragon should now be sleeping in there. To get it out of the cave, click 'move' again and select a habitat. I hope that helps.
Nope.
No dragons
U breed the two dragons ice and sandstorm
No they are not.
No, DragonVale dragons are not able to be traded.
You can't win in dragonvale, unless you consider collecting all the dragons a win.
You either need to breed new eggs in the breeding cave, or buy them in the market.
The two dragons, for some reason, are incompatible and cannot be bred together.
First you buy the breeding cave and then you choose which dragons you want to be breeding with eachother by clicking on The breeding cave
level 10
You feed them dragon food.
The dragons in DragonVale are not trainable. You only feed them to level them up and breed them.