Clean riddles

I am a five letter word and very strong. I become single when you remove two letters from me. What Am I?

Every night I'm told what to do, and each morning I do what i'm told. But I still don't escape your scold.

I am the biggest alphabet, as I contain the most water in the world. Who am I?

There were two women, standing and facing the opposite ways. The first lady was facing south and the second lady was facing north. But, they could see each other. How is that possible?

I can fly but I have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?

Each morning I appear to lie at your feet. All day I will follow no matter how fast you run, yet I nearly perish in the midday sun.

A girl was ten on her last birthday, and will be twelve on her next birthday. How is this possible?

Four children and their pet dog were walking under a small umbrella. But none of them became wet. How?

When I look at her, she smiles at me. When I wink at her, she winks at me. When I kiss her, she kisses me back. When I say I love you, she says it back. Who am I?

I live in lakes and rivers. I eat fish and birds. I have four legs and a long tail. I have lots of pretty teeth. I am a...