Good Riddles

Question: What can one not keep, two hold, and three destroy?

Question: You struggle to regain me.
When I'm lost, you struggle to obtain me.
I pass no matter your will,
but I'm your slave to kill.
What am I?

Question: The more you take, the more you leave behind.
What are they?

Question: I am a small room,
but no life lives inside,
no matter what weather looms,
very cold my residents reside.
What am I?

Question: In what year did Christmas and New Year's fall on the same year?