Kids Riddles

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: There are several different kinds, but the one you pick doesn't do its job.

What is it?

Question: 2 men catch 2 fish in 2 minutes. At this rate, how many men could catch 500 fish in 500 minutes?

Question: I can be used to build castles,
but I crumble in your hands.
I can help a man see,
and am found all around the lands.

What am I?

Question: A man was born on January 1st, 23 B.C. and died January 2nd, 23 A.D. How old did he live to be?