Probably 108.
play with it for a long time
No, oils are harmful for the plastic and make the cube feel squishy and slimy, use a sillicone based lube to lube your cube
Rubiks Cube
Are you referring to a simple magnetized ring? If so a wide stainless steel band works best for this. Simply take your steel band ring and a decent magnet. Spend about 2-5 minutes rubbing your steel band on the magnet. It's a simple trick that's useful in a decent number of small tricks.
They do not make dice.
If you are asking about "faces" a square (2 dimensional) has 1 face A cube (3 dimensional) has 6. Think of a pair of dice. If you are thinking about edges, like counting the toothpicks that it takes to make up the shapes, A square had 4 sides and a cube has 12.
Yes!
put magnets and put magnets on a car and put magnets on a car and put the car on the road and put the magnets on the road and put the magnets touch the magnets on the road and on the car
Try doing some brain teasers or games that make you think. Sodoku, Rubiks cube, and crosswords are always good. It doesn't help if you give up though; if you don't get it try again or ask someone to explain it to you. You should improve everytime you do one.
Electricity
No
They cost about 10 dollars. Or completely free from http://www.cubelagoon.com/?ref=1285 Basically, you answer surveys to gain points and then use those points to claim prizes. Such as a rubiks cube. Its 100% free. I've gotten a 3x3 white cube and a 4x4 rubiks cube from here. Its very fast.