Kids Riddles

I have seas without water, coast without sand, towns without people, mountains without land. What am I?

There is one in every corner and two in every room. What am I?

I can go through glass without breaking it. What am I?

I am as simple as a circle, worthless as a leader but when I follow a group, their strength increases tenfold. By myself I’m practically nothing. What am I?

I can only be played on a windy day. What am I?