Simple riddles

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?

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?

What came first, the chicken or the egg?

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...

I am a home of knowledge, both banal and profound. In grand halls and small homes I can be found. I am a home for things of many leaves, but my many residents are not living trees. What am I?

What comes down and goes up again and again? What is that?