What always comes into a house through the keyhole?

A father's child, a mother's child, yet no one's son.

Who am I?

When can we add 2 to 11 and get 1 as the correct answer?

Why blonde cannot dial 911?

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

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

A boy was driving a car, a girl took a lift from her. She asked his name. The boy said - my name is hidden in my car’s number, find it if you can. After this, she got down Car number was [ WV733N ] Can you guess the name now?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Can you identify the hidden rebus in the image below?