How to answer unscrambles in Zynga Hidden Chronicles?

[Romani]

I am posting this thread here to know that how can I answer the unscrambles? This is not allowing me to answer. Whenever I try to do that then it shows me the message that the reward is not valid. If you can help me in some way then please let me know that.

[mbangali]

I think that you are talking regarding the posts that people make on the walls. If this is true then there is just one thing that that you can do in order to free the XP and that is to click on thee "Get XP". But I am not very sure about this.