Which is the correct shadow of the bird?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

What is the riddle which can be asked all day with a different correct answer each time.

What is more useful when it is broken?

The dirtier I get, the whiter I look. Who am I?