What has to be broken before you can use it?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I know a nine-letter word having only one vowel.
Do you ?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

How can you take 2 from 5 and leave 4?