Kids Riddles

Question: If you have 30 white socks, 22 black socks, and 14 blue socks scattered across the floor in the dark, how many would you have to grab to get a matching pair?

Question: My boots can fit though the green glass doors but my shoes cannot. Sea weed can fit but algae cannot. A tree can fit but a forest cannot. The moon can fit but a feather cannot. Why is this?

Question: The more you work, the more I'll eat.You keep me full, I'll keep you neat. What am I?

Question: I give advice to others,
yet I know nothing myself.
I am a hitchhiker destined to stay still.

Question: What's made of wood but can't be sawed?