Answer:
Santa shakes his belly like a bowl full of me
I walk on 4 legs in the morning 2 legs at noon and 3 legs at night.
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
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. What am I?
You bury me when Iām alive and dig me up when Iām dead. What am I?
I am your mother's brother's only brother in law. Who am I?