Answer:
What begins with T ends with T and has T in it?
I am longer than a decade and shorter than a millennium
The more you take away from me, the bigger I shall get. What am I?
A hundred arms, a thousand fingers, but I have no eyes to see where I linger. What am I?
What breaks when you say its name?
No matter how little or how much you use me, you change me every month.