Answer:
I'm tall when I'm young and short when I'm old. What am I?
My second is performed by my first. A thief by the marks of my whole might be caught. What am I?
I'm at the head of an elephant and at the tail of a squirrel
I am pinched by grandmas
What is easy to get into but hard to get out of?
Both a currency and an antlered male. What is it?