They don't speak noisy, you only can "read" via dialogscreen 2 hints per statue and there are 5 statues.
If you click on a statue and nothing happens, you have a bug or corrupted savegame?
But this seems to me almost impossible.
A few people think this with the statues is a bug... but don't forget: this is a challeging puzzle, but also not very difficult IF you have seen what's the right logical way for this puzzle

Normally you can find a book near the first statue you met in Keara's Flying Fortress....
Read this book! The name of this book is: "Note".
In your topic title you say "Lieing statues" and: this is the clue, the best hint I give you: lieing! ALL is a lie!! So WHAT must you do with all hints the statues give you??? Think logical!
Second hint: write down on a paper (and make a drawing of the map, give each statue a own number, that can help you!) by each statue the 2 hints they give you! Then comparing all 10 hints and find the right names of each statue! But don't forget: ALL statues are totally lieing!!

I have search a long time too! And it isn't at all terrible if you try something and the gate won't open because you're mistaken the names! The gate then won't go open and new enemies comes up: positive: extra XP + randomly some extra loot to grap
Success!