Invention Riddles
See how many of these rhymed riddles you know. 

I have a crank and a wedge.
Now you can write with a sharper edge.
Answer

Wind the key; my spring coils tight.
I'll wake you after you sleep at night.
Answer

Shiny, sharp and made of steel,
I'll help cut food at you next meal.
Answer

On the playground I balance straight,
If you and your partner are about the same weight.
Answer

My axles are two, but my wheels are three.
Even little kids ride on me.
Answer

I'm part of a car, but I never roll.
You turn me the way the car should go.
Answer

As you turn me, the latch unlocks.
But it may still be polite to knock.
Answer

I'll help you raise the car much higher,
So you can change that old, flat tire.
Answer

Two handles have I, but one wheel on the ground.
I help you to push heavy things around.
Answer

A carpenter uses me as he should,
Twisting and turning the screw through the wood.
Answer

Just like stairs, but I move and crawl,
Up to another department floor.
Answer

I carry people up and down,
From the highest floor to below the ground.
Answer

When you sit in the barber's chair,
I am used to trim your hair.
Answer

You'll do just fine if you use me--
To help chop that gigantic tree.
Answer

I work with nails, day in, day out--
Pound them in, or pull them out.
Answer

I have two arms that you can squeeze.
And I can break hard shells with ease.
Answer

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