Practice problems related to trees

Hello Everyone,
I am very new to programming and data structures, I am reading trees from “Introduction to Algorithm” by CLRS, I need help in practicing them, I don’t know any site where I can get lot of problems related to tree topic only, as I am unable to figure out any particular question can be solved with tree. Any help will be appreciable and I will be highly obliged.

Thank you

Check these out. All problems are based on trees.


Thanks you for the link.