When we see 2 but call 10?

What is the centre of gravity?

The answer I give is yes, but what I mean is no. What was the question?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

how come the second man dies?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

What always comes into a house through the keyhole?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

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