Answer:
I can wake you up in the morning but I require no electricity or winding.
Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers magazines and journals.
I am a protector. I sit on a bridge. One person can see right through me while others wonder what I hide.
It's been around for millions of years but is never more than a month old. What is it?
I can be written, I can be spoken, I can be exposed, I can be broken. What am I?
What language does a billboard speak?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic