Question or Riddle

I have many question or riddle here to say to all.

1.What Is the thing that has one leg and three eyes?
Clue:When driving
2.What kind of box that you can't carry?
Clue:anything can't carry it.
3.What kind of food that you can't eat in the middle of it?
Clue:you find it in a bakery.
4.What thing if you tied it,it move and when it untide it stop?
Clue:Every day you will see it
5.Where do we eat?
Clue:you don't need a clue it is an easy questions.
6.What thing that when you move it move when you stop it move?
Clue:a doctor may know.
7.What is the type of food that everyone in this world like it?
Clue:Start with F
8.What kind of food that you cannot eat?
Clue:This kind of food is known by all people.
9.What type of motor when we press the handle it won't move?
Clue:Those who has ride a motorcycle they konw it?
10.Motorcycle or car which one is older?
Clue:the clue is same as above
11.How to make the waterfall stop?
Clue:I don't have clue for this.

For those who knows the answer please send it at comment for this post.
I will bring more riddle for my visitors. Thank You.