please answer these riddles.its very important.

1) how can you keep water on a net?

2) it can be cut and will grow back. yet when you least expect it, it may disappear never to return.

3) i weaken all men for hours each day. i show strange visions while you are away. i take you by night, by day take you back. none suffer to have me, but do from my lack.

4) they have not flesh nor feathers, nor scales, nor bones, but they do have fingers and thumbs of their own.

5)double by number, i'm less than a score. half of my number is less than four. add one to my double when bakers are near. days of the week are still greater, i fear.

6) you are at a river. with you are a chicken, a wolf and a bag full of grains. you have to cross the river in your canoe but can only take one with you at a time.
you cant leave the chicken with the grain.he will eat it.
you cant leave the wolf with the chicken.he will eat it.
how will you get everything over and intact?