Answer:
What is made of wood, but can't be sawed?
I come without being fetched at night, hide away as soon as daylight strikes. Although I may look small, I am much mightier than what you can imagine. What am I?
What loses its head in the morning but gets it back at night?
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
I belong to everyone. Sometimes make you happy sometimes make you sad. I will never end until the day you do.
A little house full of meat, no door to go in and eat.