Answer:
What's 3/7 chicken, 2/3 cat, and 2/4 goat?
What body part is pronounced as one letter, but written with three, only two different letters are used?
I am an instrument you can hear but cannot touch or see. What am I?
What did the thief get for stealing the calendar?
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
No matter how little or how much you use me, you change me every month.