THREE RHYMING RIDDLES

1)

Built for speed,

The track's my home;

One thing more,

I'm a palindrome.

2)

My first is in heaven, but not in clouds,

My second in the middle of day;

My third is surrounded by eternity,

My last the first of play.

3)

At the base I sit,

At first glance a misfit,

For among my peers I seem colossal.

But my duty is really quite simple, you see,

I separate things to preserve harmony.

I guarantee you have seen me countless times,

So what am I, that ever cuts,

Yet is never convicted of a crime?

HINT:

3. "Cuts," as in separates

Answers:

1. RACE CAR

2. HARP

3. Space bar on a computer keyboard