Quoted from "Dada" Sorry, I stand corrected: In the library list, there are 25 keys indeed -- there is 2 keys in one box and 5 keys in another -- I just counted the boxes, so I should have paid more attention. When you write If these logical tasks are so difficult for you, we will add all 25 tasks to the list so that nothing is required of you at all. it sounds like you think I am lazy and can't think. I am not sure if you want to imply this, but it does not ring very positive in my ears. I sti...