Answer:
I start new then become old. Start clean but become dirty. I usually start big then become little. What am I?
I am a cold man without a soul. If there is warmth in me, it slowly will kill me. What am I?
I am taken from a mine and shut in a wooden case from which I am never released. Yet I am used by almost everybody. What am I?
If you break me, I'll not stop working. If you can touch me, my work is done. What am I?
I jump when I walk and sit when I stand.
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?