Good Riddles

Question: Countless blades that bend with a touch,
exploited by kids who want to make a buck.

What am I?

Question: What does a TV stand for?

Question: what goes up and dosent go down

Question: John has been hired to paint the numbers 1 through 100 on 100 apartments.

How many times with he have to paint 8?

Question: Connect all 9 of the dots using 4 straight lines or less. Do so without lifting the pen or tracing the same line more than once.