Answer:
I am pronounced as one letter written with three. I come in blue black brown or grey. Reverse me and I read the same either way.
I have a face and two hands, but I have no arms or legs. Six plus seven is one. What am I?
I have lakes but no water forests but no trees and cities but no buildings. What am I?
I am the word that is always spelled correctly by everyone.
When I come in from sea to shore twenty paces you'll see No less no more.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.