Answer:
I help engines spin and pants stay up.
In Paris but not in France the thinnest of its siblings.
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.
u always follow me but I am rarely seen
I can wave my hands at you but I never say goodbye. You are always cool when with me even more so when I am high!
A cowboy rode into Friday. He stayed in town for three days and rode back on friday. How is that possible?