THREE RHYMING RIDDLES

1)

I am just a lowly thing,

The object of much derision;

I'm odd because I multiply

By practicing division.

2)

Black as night I can be,

Until my Mother sits on me;

Then I become as clear as ice,

And as I change - up goes my price.

3)

To solve this riddle, my whole you must be;

Consider these clues, and I think you'll agree.

Take away my first letter and I am a store,

Take away my second and I'm what many adore;

Restore my whole, read me in reverse if you're able,

I'm now cars suspended from an overhead cable.

From this take one letter - leaving four you may keep,

And these spell out - surprise - male sheep.

Answers:

1. An amoeba

2. Coal (which becomes a diamond under pressure)

3. SMART (mart, art, trams, rams)