Who am I? (Med)

I jump when I walk and sit when I stand. What am I?

I come out at night without being called. I’m lost in the day without being stolen. What am I?

I can wake you up in the morning without electricity, batteries, or winding. What am I?

The more you take away from me, the larger I become. What am I?

I am as light as a feather, yet no man can hold me for long. What am I?

I can run but not walk. Wherever I go, you are close behind. What am I?

I get wet when drying. What am I?

I demand answers but ask no questions. What am I?

I am not alive, but I grow; I don’t have lungs, but I need air; I don’t have a mouth, but water kills me. What am I?

I am a character in “the Lord of the Rings”, who finds a magic ring left behind by my Uncle Bilbo Baggins. Who am I?

I am the beginning of the end, the end of every place. I am the beginning of eternity, the end of time and space. What am I?

I have wheels and flies, but I’m not an airplane. What am I?

Tall hat. Beard. Assassination. Which US President we are talking about?

I can fly without wings and cry without eyes. What am I?

As the founder and president of Amazon Incorporation, I am now the wealthiest person in the world with a net worth of around $110 billion. Who am I?

I commanded the German military to invade Poland in 1939 and started the biggest war in modern history. Who am I?