I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Rearrange the letters in "new door" to make one word.

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

What has a bottom at the top?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _