THREE RHYMING RIDDLES

1)

I'm a whole number when I stand upright,

Nothing special about me;

But tip me on my side,

Now that's something to see:

I've changed into infinity.

2)

When you seek a view, you look at me,

Though I am not what you see.

3)

We come together, though we seem apart,

We often signal that a storm will soon start;

You see me and hear my brother,

Who often makes little ones run to their mother;

I am bright and my brother is loud,

Though many may say so, we don't come from a cloud.

Answers:

1. The number 8

2. A window

3. Lightning and thunder