Simple riddles

I go around in circles, but always go straight ahead. I never ever complain, no matter where I am lead

What letter is next in this sequence? M, A, M, J, J, A, S, O,__

What is the largest number you can write with just 3 digits?

Never ahead, ever behind, yet flying swiftly past; for a child, I last forever; for an adult, I'm gone too fast. What am I?

I live in the woods. I'm very big and furry. I have a big nose, a little tail and four legs. I like to eat fish and berries. I am a...

Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not.

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

I am always will be coming, but I will never come. What Am I?

We are a family of 12 members. I am the second. I am also the youngest in our family. Who am I?