Which of the below owl is odd one out?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

No matter how little or how much you use me, you change me every month. What am I?

I am the fastest animal but cannot climb the tree. What am I?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Which is heavier: a ton of bricks or a ton of feathers?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

They are three errirs in this question. Can you find them?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?