I keep Food Cold

You can see me on trees. My body is round and yellow.

I am very healthy. You can squeeze me and drink me in summer.

I taste sour.

Who I am?

I am made of milk. You keep me in the fridge.

I am cold and you like to eat me in the summer.

Who am I?

I don't have legs. I don't have arms.

I don't have ears. I live in the water.

I can swim well.

Who I am?

I am the nearest planet to the sun.

I am the smallest planet in the solar system.

Who am I?

I am small. I have feathers.

I lay eggs. I can sing and fly.

Who I am?