Which is the correct shadow of the bird?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

What has one letter and starts with an E?

Which point will the car reach to go out?

How many times can you subtract the number two from the number fifty?

What you cannot hold but it is yours?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

Do You See It?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?