Answer:
It's red liquid but not liquid and it's not red. What is it?
Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers magazines and journals.
The more holes you cover the lower I go.
I am owned by the poor, the rich do not need me. If you eat me, you will die! What am I?
Four fingers and a thumb, yet flesh and blood I have none. What am I?
What never gets any wetter no matter how hard it rains?