It takes less time for me to count backwards from a hundred than it does from seventy-five. What am I ?

I have a hat but I’ve no hair, Buttons for eyes, but I just stare. I never walk, I never go, I just scare crows

When I go through the wash, I occasionally come back single.

knob, bell, frame, revolving, sliding, trap. The Polkadot. Knock-knock-knockin' on Heaven's...

A house for birds, I am. Or any avian, I suppose. Find me at a zoo, a menagerie, Or another place, you choose. In me, birds roost, Breed, and thrive… What am I? Here’s a boost- I start with A and end in why.