Good Riddles

Question: What can one not keep, two hold, and three destroy?

Question: Four cars come to a four way stop, all coming from a different direction. They can't decide who got there first, so they all go forward at the same time. They do not crash into each other, but all four cars go. How is this possible?

Question: You put me in hard.
But then I become soft.
Blow me hard and I will get bigger.

What am I?

Question: What belongs to you but others use it more than you do?

Question: There were 4 men fishing. The boat tipped, and every man fell into the water. Not a single man got wet. How is this possible?