Answer:
What holds names and memories which are not its own?
Though desert men once called me God, today men call me mad. For I wag my tail when I am angry. And growl when I am glad.
I have rivers without water. Forests without trees. Mountains without rocks. Towns without houses.
What can be measured but not seen?
Look into my face and I'm everybody. Scratch my back and I'm nobody.
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?