Answer:
When set loose I fly away. Never so cursed as when I go astray.
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down but should not be forgotten.
The last woman on Earth received a phone call. Who was the caller?
What is made of wood, but can't be sawed?
I walk on 4 legs in the morning 2 legs at noon and 3 legs at night.
What gets bigger the more you take away?