wow, those are some tough riddles indeed.
well i have one, its not to hard but it was the only one i could remember.
a white chest with a golden treasure inside,
no way to open it, but smashing it will lose the treasure
but be gentle and all will be revealed
what is the white chest.
its rather simple if i do say so myself.
edit: and i just remembered another.
at 9 oclock it walks on four legs, at noon it walks on 2, and at 6 it walks on 3. what is it.