Good Riddles

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

What am I?

Question: You use a knife to slice my head and weep beside me when I am dead.

What am I?

Question: What has to be broken before you can use it?

Question: At school Joe has three friends: Tim, George and Paige. Two of them play football, two play tennis, and two play golf. The friend who doesn't play golf doesn't play tennis and the one who doesn't play football doesn't play golf. Which sports does each person play?

Question: I have all of your knowledge but could fit in your hands.

What am I?